Part 2 - The Son of God - From the Annunciation to the Throne
The title Son of God does not originate with the New Testament. Israel is called God's son; so are angels, and so is the Davidic king, and any account of what the title means when applied to Jesus has to reckon with why His use of it got Him charged with blasphemy when the others did not.
The answer is in how the Gospels handle it. The voice from heaven at the Jordan, the voice from the cloud on the mountain, the angel's explanation to Mary, and the opening lines of Hebrews all press the title past adoption and into identity — culminating in a Father who addresses His Son directly as God. This post works through the first seven of those passages.
A reminder carried through this series: Son of God is not shorthand for "the divine half." The same title appears in contexts of obedience, dependence, and human birth. Both dimensions run through both names, which is the point established in Two Titles, One Person. For the broader question of how Scripture identifies Jesus with YHWH, see the deity of Christ series; for the Old Testament groundwork, Jesus in the Old Testament and The Angel of the LORD.
Linguistic and Biblical Background of "Son of God"
The Greek title is υἱὸς τοῦ θεοῦ (huios tou theou, BDAG 1025), meaning "Son of God." When applied to Jesus in the New Testament, it almost always appears with the definite article: ὁ υἱὸς τοῦ θεοῦ (ho huios tou theou), "THE Son of God." This distinction is significant. In the ancient biblical world, the Hebrew and Aramaic idiom "son of [X]" denoted belonging to a category or sharing in the essential nature of what followed. Angels are called "sons of God" (בְּנֵי הָאֱלֹהִים, bĕnê hāʾĕlōhîm, Job 1:6; Gen. 6:2), Israel is called God's son (Exod. 4:22), and believers are called sons of God (John 1:12; Rom. 8:14). But Jesus is never called a son of God alongside others; He is always and uniquely THE Son of God.
The presence of the definite article marks absolute uniqueness. As Leon Morris notes in The Gospel According to John [^3]: "The use of the article with 'Son of God' in the Johannine writings is not incidental. It consistently distinguishes Jesus' sonship as being of a wholly different order — not adoptive, not representative, but essential and eternal. He is the Son in a way no creature can be."
This uniqueness points to what theologians call the eternal generation of the Son — the Son's eternal, ontological relationship to the Father within the Trinity, not a beginning in time but a relationship that has always existed (John 1:1–2; Heb. 1:3; Prov. 8:22–31).
John 1:34 — John the Baptist's Testimony
"I myself have seen, and have testified that this is the Son of God."
John the Baptist's declaration that Jesus is "the Son of God" is the climax of his entire testimony in the Fourth Gospel. John was not merely offering a complimentary title. In the Jewish context of Second Temple Judaism, to call someone "the Son of God" in the absolute sense was to make a claim of divine origin and unique relationship with YHWH. John had been sent specifically to identify and announce the One who would surpass him (John 1:29–30), and his use of this title — preceded by his witness of the Spirit descending upon Jesus like a dove (John 1:32–33) — was the definitive identification of Jesus' nature.
The verb "I myself have seen" (ἑώρακα, heōraka) is a Greek perfect tense, indicating a past event with ongoing, present significance. John did not say "I saw once" but rather "I have seen and the seeing continues to bear witness." His testimony was personal, permanent, and authoritative. The Baptist then connects it directly to the Spirit's descent, which served as the divine sign confirming who Jesus was.
D. A. Carson writes in The Gospel According to John [^4]: "John's declaration 'This is the Son of God' is more than a title of honor; it is a theological statement about Jesus' unique relationship with the Father, confirmed by the Spirit's anointing. It cannot be reduced to a messianic office title alone; the phrase carries the weight of divine identity."
This testimony surpasses all human categorizations — prophet, rabbi, teacher, or good person — and places Jesus in an entirely separate category: divine Son. Connected to this is John 1:18: "No one has seen God at any time; the only begotten God who is in the bosom of the Father, He has explained Him." The one whom John identifies as the Son of God is the very one who uniquely indwells the Father's presence — not as a creature, but as God Himself.
Luke 1:35 — The Annunciation: Born of the Holy Spirit
"The angel answered and said to her, 'The Holy Spirit will come upon you, and the power of the Most High will overshadow you; and for that reason the holy Child shall be called the Son of God.'"
The angel Gabriel's announcement to Mary establishes the theological reason Jesus bears the title "Son of God": His conception was divine, not human. The phrase "the Holy Spirit will come upon you" (πνεῦμα ἅγιον ἐπελεύσεται ἐπί σέ, pneuma hagion epeleusetai epi se) describes a creative, generative act of God — not a biological union. The parallel phrase "the power of the Most High will overshadow you" (δύναμις ὑψίστου ἐπισκιάσει σοι, dynamis hypsistou episkiasei soi) echoes the language of the Shekinah glory of God overshadowing the tabernacle in Exodus 40:35, signifying God's holy, glorious presence descending to dwell within.
The key word is ἐπισκιάσει (episkiasei, BDAG 378), "to overshadow, to envelop in a shadow." This word also appears at the Transfiguration (Luke 9:34) and consistently carries associations with the divine presence. Mary's womb, like the tabernacle of old, was the dwelling place of God's glory. The result of this divine act is that the child would be called ἅγιος (hagios, BDAG 10), "holy" — set apart from sin from the very moment of conception. His holiness flows from His origin; because He has no human father, He did not inherit Adam's fallen nature.
I. Howard Marshall explains in The Gospel of Luke [^5]: "The logic of Gabriel's explanation is causal: 'for that reason' (διό, dio) the child shall be called Son of God. His divine origin — the creative act of the Spirit — is the direct basis of the title. This is not adoption language but ontological language: the one born is holy because He is, in His very being, the Son of God."
The Hebrew idiom "son of" carries meaning of sharing in the essential nature of what follows. Jesus being called the Son of God because He was conceived by the Spirit means He participates in the nature of God in a way no other human being does. This is further confirmed by John 1:14: the Word who was God became flesh and dwelt among us. The Annunciation is the historical moment that Incarnation became reality.
John 5:17–18 — Making Himself Equal with God
"But He answered them, 'My Father is working until now, and I Myself am working.' For this reason therefore the Jews were seeking all the more to kill Him, because He not only was breaking the Sabbath, but also was calling God His own Father, making Himself equal with God."
After healing a paralytic on the Sabbath (John 5:1–16), Jesus' response to the Jewish leaders is extraordinary. Rather than defend Himself against the Sabbath charge, He places Himself in the same category of activity as God the Father: "My Father is working until now, and I Myself am working." The possessive "My Father" (ὁ πατήρ μου, ho patēr mou) was immediately understood by His Jewish audience as a claim of unique, personal, intimate relationship with God — not merely the corporate relationship Israel had with YHWH as their national Father (Isa. 63:16).
The Jews' response in verse 18 is the interpretive key to the entire passage. They understood Jesus' statement in three ways: (1) He was claiming a unique, personal Father-Son relationship with God; (2) this implied equality of essence; (3) this was equivalent to blasphemy. Their interpretation was not a misunderstanding — it was the correct reading of what Jesus intended. Crucially, Jesus does not correct their interpretation. In the verses that follow (John 5:19–30), He expands upon it: the Son does what the Father does, receives equal honor with the Father (v. 23), has life in Himself as the Father has life in Himself (v. 26), and will execute judgment (v. 27).
The phrase "making Himself equal with God" uses the Greek ἴσον ἑαυτὸν ποιῶν τῷ θεῷ (ison heauton poiōn tō theō; BDAG 481, isos: "equal in size, degree, or nature"). This is not a claim to functional similarity but to essential equality — sameness of nature, authority, and power. Gary Burge writes in John [^6]: "Jesus is not claiming to be a subordinate co-worker with the Father, as if two laborers were doing the same job. He is claiming that His work is the Father's work because He shares the Father's nature — the same divine life, the same divine authority."
The parallel passage in John 10:30–33 confirms this reading. When Jesus says "I and the Father are one," the Jews again immediately understand this as a claim to deity and take up stones. Jesus' claim in John 5 is a direct declaration of divine sonship that His contemporaries rightly understood as a claim to be equal with God.
Additionally, the statement "My Father is working until now" is a claim to an unbroken divine activity that transcends even the Sabbath restrictions. In Jewish theology, God continued to sustain life on the Sabbath (births and deaths occurred on the Sabbath; God did not stop governing the universe). By claiming to work in the same way as the Father works, Jesus is claiming to participate in the divine governance and sustaining of creation — a prerogative reserved for God alone (Col. 1:17; Heb. 1:3).
Matthew 3:17 — The Father's Confirmation at the Baptism
Matthew 3:17 | Parallel: Mark 1:11 | Luke 3:22
"and behold, a voice out of the heavens said, 'This is My beloved Son, in whom I am well-pleased.'"
The baptism of Jesus is one of the clearest Trinitarian scenes in all of Scripture: the Son is being baptized, the Spirit descends as a dove, and the Father speaks from heaven. God the Father's declaration "This is My beloved Son" (οὗτός ἐστιν ὁ υἱός μου ὁ ἀγαπητός, houtos estin ho huios mou ho agapētos) is not merely an expression of approval but a declaration of identity and status.
The word ἀγαπητός (agapētos, BDAG 7) means "beloved, dear, only." In the Septuagint (the Greek translation of the Hebrew Old Testament), this same word translates יָחִיד (yāḥîd, "only, unique, the one and only"), the word used in Genesis 22:2 when God tells Abraham to take his "only son" Isaac. The echo is intentional: as Isaac was Abraham's uniquely precious, only son, so Jesus is the Father's uniquely precious, only Son — but infinitely more so, because this is the eternal Son of the eternal God.
The second phrase "in whom I am well-pleased" (ἐν ᾧ εὐδόκησα, en hō eudokēsa) echoes Isaiah 42:1: "Behold, My Servant, whom I uphold; My chosen one in whom My soul delights." This is the first Servant Song of Isaiah. The Father is identifying Jesus as the fulfillment of the Servant who would bring justice to the nations and accomplish God's redemptive purposes — the Servant who would be the covenant for the people and a light for the nations (Isa. 42:6).
Grant Osborne writes in Matthew [^7]: "The voice from heaven serves the double purpose of declaring Jesus' divine identity (Son of God) and His messianic mission (the Servant). The two are inseparable: He can accomplish the mission because of who He is, and who He is explains the magnitude of what He came to do."
The declaration is confirmed again at the Transfiguration (Matt. 17:5): "This is My beloved Son, with whom I am well-pleased; listen to Him!" — reinforcing that the Father's identification of Jesus as His unique Son is not a one-time event but a permanent, unwavering divine declaration.
Matthew 17:5 — The Transfiguration
Matthew 17:5 | Parallel: Mark 9:7 | Luke 9:35
"While he was still speaking, a bright cloud overshadowed them, and behold, a voice out of the cloud said, 'This is My beloved Son, with whom I am well-pleased; listen to Him!'"
On the Mount of Transfiguration, Jesus' divine glory — which He had veiled in His humanity — was momentarily unveiled before Peter, James, and John. His face shone like the sun (Matt. 17:2), and His garments became white as light. Moses (representing the Law) and Elijah (representing the Prophets) appeared and spoke with Him (Luke 9:31), confirming that all of the Old Testament pointed to and would be fulfilled through Him.
The Father's declaration here is nearly identical to the baptism declaration, with the addition of the command: "Listen to Him!" (ἀκούετε αὐτοῦ, akouete autou). This command echoes Deuteronomy 18:15 — Moses' prophecy of the coming prophet: "The Lord your God will raise up for you a prophet like me from among you, from your countrymen, you shall listen to him." Yet the Father is not merely identifying Jesus as the Mosaic prophet; He is identifying Him as His own Son, standing above Moses and Elijah, who represent the entire Old Covenant. The disciples fell on their faces in awe (Matt. 17:6) — a response reserved for God's presence throughout Scripture (Isa. 6:5; Ezek. 1:28; Rev. 1:17).
The Transfiguration answers any doubt that Jesus' divine glory was a post-resurrection invention. Peter, one of the three witnesses, later confirms: "We were eyewitnesses of His majesty. For when He received honor and glory from God the Father, such an utterance as this was made to Him by the Majestic Glory: 'This is My beloved Son with whom I am well-pleased' — and we ourselves heard this utterance made from heaven" (2 Pet. 1:16–18).
Hebrews 1:1–3 — The Radiance of God's Glory
"God, after He spoke long ago to the fathers in the prophets in many portions and in many ways, in these last days has spoken to us in His Son, whom He appointed heir of all things, through whom also He made the world. And He is the radiance of His glory and the exact representation of His nature, and upholds all things by the word of His power. When He had made purification of sins, He sat down at the right hand of the Majesty on high."
The prologue of Hebrews is one of the most exalted Christological passages in all of Scripture. In three verses, the author establishes the Son as the apex and fulfillment of all divine revelation, the Creator of the universe, the sustainer of all things, the full representation of God's nature, and the one who accomplished purification for sins and now reigns at the Father's right hand.
"The radiance of His glory" — The Greek is ἀπαύγασμα τῆς δόξης (apaugasma tēs doxēs, BDAG 99). The word ἀπαύγασμα can mean either "reflection/effulgence" (light radiating from a source) or "radiance" (the shining forth of light itself). The context strongly supports the latter — not that the Son merely reflects God's glory as a mirror does, but that the Son is the outshining, the effulgence, of the divine glory itself. William Lane writes in Hebrews 1–8 [^8]: "The term 'apaugasma' conveys the consubstantial relationship between the Son and the Father — not a derived, secondary glory but the same glory streaming forth in its full, essential brightness. The Son does not point to God's glory; He is its radiance."
The parallel term "exact representation of His nature" — χαρακτὴρ τῆς ὑποστάσεως αὐτοῦ (charaktēr tēs hypostaseōs autou) — drives this point home with precision. The word χαρακτήρ (charaktēr, BDAG 1077) was used in Greek to describe the impression made by a seal on wax — an exact replica in every detail. The Son is the perfect, complete, and exact impression of the Father's very being (ὑπόστασις, hypostasis, "essence, substance, nature"). This is not a copy or a near-equivalent; it is the same nature reproduced perfectly in another Person. As F. F. Bruce writes in The Epistle to the Hebrews [^9]: "'Exact representation' is too weak if it suggests a mere resemblance. The Son is the very image that God stamps upon existence; in Him the Godhead is imprinted, not illustrated."
"Through whom also He made the world" — The Son is identified as the agent of creation (δι᾽ οὗ, di' hou, "through whom"). This aligns precisely with John 1:3 ("All things came into being through Him"), Colossians 1:16 ("by Him all things were created"), and Proverbs 8:30 where Wisdom (understood in Jewish-Christian tradition as the pre-incarnate Son) was beside the Father as a master workman during creation.
"Upholds all things by the word of His power" — The Son not only created everything but actively sustains it moment by moment. The Greek φέρων (pherōn, present participle of φέρω, BDAG 1051) means "carrying, bearing, upholding" — not a static holding but a dynamic, active sustaining. Every atom, every star, every heartbeat exists because the Son of God is continuously upholding it by the word of His power. This cosmic sustaining activity is an exclusively divine prerogative (cf. Col. 1:17).
"He sat down at the right hand of the Majesty on high" — After accomplishing the purification of sins through His sacrificial death, the Son returned to His place of supreme authority. The image of "sitting at the right hand" (cf. Ps. 110:1) denotes completed work and regal authority. This is not a new status but a return to the glory He had with the Father before the incarnation (John 17:5).
Hebrews 1:8 — The Father Addresses the Son as "God"
"But of the Son He says, 'Your throne, O God, is forever and ever, and the righteous scepter is the scepter of His kingdom.'"
This verse, quoting Psalm 45:6, records God the Father Himself addressing the Son with the title "God" (ὁ θεός, ho theos). This is one of the most explicit biblical texts in which the Son is called θεός (theos) — not by a disciple or an apostle, but by God the Father. The author of Hebrews introduces this quotation with the phrase "But of the Son He says," making clear that the Father is the speaker and the Son is the addressee. There is no room for reinterpretation: the Father calls the Son "God."
Murray Harris, in Jesus as God: The New Testament Use of Theos in Reference to Jesus [1], writes: "This is perhaps the most unambiguous instance in the NT of the title 'God' applied to Jesus. The context is the Father's own speech; the application is to the Son. To deny that Jesus is here called God is to deny the plain meaning of the Greek text."
The Messianic Psalm 45 was understood in Judaism to describe the Divine King. When the author of Hebrews applies it to Jesus, he is saying that Jesus fulfills what the Psalm envisioned — the King whose throne endures forever, whose scepter is righteousness. This eternal throne connects directly to Daniel 7:14 and the everlasting dominion given to the Son of Man.
The Series
Part 2 of six in the series Son of God vs Son of Man: The Two Titles of Christ.
- Part 1 - Two Titles, One Person
- Part 2 - The Son of God - From the Annunciation to the Throne (this post)
- Part 3 - The Son of God - Confessed, Contested, and Sent
- Part 4 - The Son of Man Among Us - The Title Jesus Chose for Himself
- Part 5 - The Son of Man in Glory - Judgment, Ransom, and Return
- Part 6 - One Person, Two Natures - And What Happens When That Is Denied
Baker, 1992, p. 205 ↩︎
Author
Raised in a Christian home, I came to faith later in life. A family crisis in 2019 drove me to study Scripture deeply, and by 2021 I answered my calling to ministry and teaching God's Word.
