What does "Son of God" mean in the Bible?

God promises David a descendant whose throne will stand forever, and the covenant is stated in father-son language: “I will be his father, and he will be my son” (2 Samuel 7:14). The sharpest detail in the passage is its condition: this son can sin, and God will discipline him for it (“If he commits iniquity, I will chasten him,” 2 Samuel 7:14). The sonship here is real, tied to God's covenant promise, and compatible with failure. Centuries later, the New Testament's letter to the Hebrews applies this same verse to Jesus (Hebrews 1:5), which is why it opens the range.

The psalm is a coronation song. God installs his king on Zion, and the king recites the decree: “You are my son. Today I have become your father” (Psalm 2:7). In its coronation setting, many scholars read the "today" as enthronement language, sonship conferred when the king is crowned; Christian interpreters, who apply the verse to Jesus, hear more in it than adoption. The New Testament reaches for this verse repeatedly: in the baptism scenes, in the preaching at Acts 13:33, and again in Hebrews 1:5.

A whole nation also bears the title. God tells Moses to address Pharaoh with “Israel is my son, my firstborn” (Exodus 4:22), and Hosea looks back on the exodus in the same language: God loved Israel as a child and called his son out of Egypt. Matthew then applies Hosea's sentence to Jesus's return from Egypt after the flight from Herod, quoting “Out of Egypt I called my son” (Matthew 2:15). The double use is itself instructive: one verse carries Israel's story and is read again as Jesus's story, presented in Matthew's own words as “that it might be fulfilled which was spoken by the Lord through the prophet.”

At verse 6, Job's opening scene moves to heaven, where “God's sons came to present themselves before Yahweh” (Job 1:6), members of the heavenly court, with Satan among them. Genesis 6 uses the same phrase for the beings who take wives from among human women, and ancient and modern interpreters dispute who the phrase refers to: the heavenly-beings reading is the majority view in current critical scholarship, and other interpreters identify God's sons with the Sethite line, the descendants of Seth. On either reading, the phrase reaches beyond any human king.

Psalm 82 addresses an assembly with astonishing words: “You are gods, all of you are sons of the Most High. Nevertheless you shall die like men” (Psalm 82:6-7). Who are they? The divine-council reading, heavenly beings in the assembly God presides over, is the majority view in current scholarship; the human-judges reading is the dominant classical Jewish reading. Jesus's own use of the psalm works on either. Accused of blasphemy, he cites it, notes that Scripture “can't be broken,” and restates his claim as “I am the Son of God” (John 10:34-36). The full John 10 scene, quoted through verse 39, is read whole on Did Jesus say he is God?

Luke's genealogy walks backward from Jesus, name by name, and its last words make the first human being a son of God by creation. The range also includes the righteous and the faithful. In the Sermon on the Mount, Jesus promises the title to a whole class of people:

And Paul says it of every believer:

Christian teaching takes this adoption seriously as real sonship conferred by the Spirit. That matters for the question this page ends on, because the Christian claim about Jesus was never that he alone may be called a son of God.

A standard academic treatment of this material, Adela Yarbro Collins and John J. Collins, King and Messiah as Son of God (2008), reads Hebrew-Bible sonship as royal and adoptive for the king and collective for Israel, and traces how belief in Jesus's divine sonship later grew inside Jewish one-God language. One title, many bearers: these passages show that sonship language already had a broad range before the Gospels, and Jesus reached into that range himself when charged. What the range cannot settle is whether his sonship sits inside it or beyond it: one son among many, or the only Son.

John's characteristic word for Jesus's sonship is monogenēs, and two questions about it are genuinely open: what the word means, and what John 1:18 originally said. Named scholars argue both sides of each.

Start with usage, because usage is the strongest evidence any dictionary has. In Luke, the word describes an ordinary dead boy:

A widow's “only born” son: here the word simply marks him as her only son, and it makes no claim about divine sonship. Hebrews applies the same word to Isaac:

Here the observation does real work. Isaac was not Abraham's only offspring; Ishmael precedes him (Genesis 16). So in this verse the word carries the sense of uniqueness, the one of promise, since the sense of sole offspring is factually excluded. That is the standard dictionary argument for "unique," and it has a serious rebuttal, stated below.

The edition this site quotes flags the word itself. The World English Bible renders monogenēs as "only born" and attaches its own footnote, printed here exactly as it stands: The phrase “only born” is from the Greek word “μονογενους”, which is sometimes translated “only begotten” or “one and only”. (At John 1:18, Luke 7, and Hebrews 11 the Greek form given is “μονογενη”.)

Then comes John 1:

At verse 18 the WEB prints "Son": “The only born Son, who is in the bosom of the Father, has declared him.” And it attaches a second footnote, three words long: NU reads “God”. NU is the WEB's mark for the modern critical Greek text (the Nestle-Aland/UBS edition). The translation quoted throughout this page acknowledges the fork in its own margin.

The fork is real. Some of the earliest surviving copies read monogenēs theos, "only-begotten God" (the papyri P66 and P75, and the fourth-century Codex Sinaiticus and Codex Vaticanus), and the Nestle-Aland critical text prints it; favoring that reading is the majority view among modern textual critics. Bruce Metzger's Textual Commentary on the Greek New Testament (2nd ed., 1994) records the committee's reasoning, its B rating for the reading, and Allen Wikgren's printed dissent. On the other side stands ho monogenēs huios, "the only-begotten Son," attested across the bulk of the later manuscript tradition and the ancient translations, and matching John's own idiom at 3:16, 3:18, and 1 John 4:9, where monogenēs stands with "Son" every time. Bart Ehrman defends the "Son" reading as original in The Orthodox Corruption of Scripture (1993), arguing that "God" entered the text as a secondary, theologically motivated correction. Which direction any corruption ran is exactly the disputed point, and the witnesses and arguments above are what both sides work from.

Behind the English phrase sits a Latin pedigree. The Clementine Vulgate, the Latin Bible that served the Western church for centuries, reads at John 1:18 “unigenitus Filius, qui est in sinu Patris, ipse enarravit.” It uses unigenitus again at 3:16, and the Latin tradition carried "only begotten" into English through Wycliffe and the King James Version. The modern movement is observable and checkable now at biblegateway.com. At John 1:18: NIV (2011) “the one and only Son, who is himself God”; ESV (2025 text) “God the only Son”; NRSVue “the only Son, himself God”; KJV “the only begotten Son”. At John 3:16: KJV “his only begotten Son”; RSV “his only Son”. This history is evidence about the word's meaning, and all of these versions are used in Nicene churches: the shift in modern versions is a judgment about one Greek word, made within the same broad tradition.

The case for each meaning is on the record. Dale Moody's 1953 Journal of Biblical Literature article, "God's Only Son: The Translation of John 3:16 in the Revised Standard Version," made the classic case for "unique": the Luke and Hebrews usage, the word's use in the Septuagint (the ancient Greek translation of the Hebrew Bible), and a derivation from genos (kind) rather than gennaō (beget). Most modern Greek dictionaries, including the standard reference dictionary BDAG, class the word as meaning unique, the one and only of its kind. Charles Lee Irons, in "A Lexical Defense of the Johannine 'Only Begotten'" (in Retrieving Eternal Generation, 2017), argues the reverse: monogenēs does mean "only begotten," from the monos plus gennaō word family; the argument from the word's roots cuts both ways; and usage in one-child contexts predominates, so Luke 7:12 and Hebrews 11:17 do not settle the word against "begotten." Irons's is the strongest current case for the traditional rendering, and it engages the majority dictionary view head-on.

Neither question settles the question of faith. Whatever monogenēs means, and whichever reading John wrote at 1:18, the church confesses the Son and the Quran denies any son. The disputes over the word and the wording only decide what evidence each side can cite.

John narrates not only the claim but how it sounded in the room: calling God “his own Father” was heard as “making himself equal with God.” On the Christian reading, that hearing is correct, and the Gospel's prologue is the frame that makes it correct. The same Gospel opens with the Word who both “was God” and “became flesh” (John 1:1, 1:14): John applies this sonship language to one already on the divine side of the line between Creator and creature, so on this reading the sonship is eternal generation, an eternal relation within God, a different category from adoption or office. One more usage supports it. Jesus speaks of "the Son" and "the Father" with no name attached (Matthew 11:27), a way of speaking that none of the texts quoted above uses of kings or the righteous.

The church then codified the reading in language engineered to protect it from the crude version. The Nicene Creed (325/381) confesses the Son “begotten of the Father before all worlds… begotten, not made, being of one substance with the Father.” As its defenders present it, every clause exists to affirm sonship while denying creaturely begetting: the Son's begetting is eternal, and no moment of making ever occurred. Athanasius's Orations Against the Arians gives the classical defense of exactly this category, and Irons's case for the word is its strongest current form.

Eternal generation is the church's affirmed reading of the texts above rather than a phrase the texts themselves use; the affirmation is a matter of faith, sealed in the creed.

The word the Quran denies is walad, Arabic for offspring, a child born: God does not take and does not beget a son. And the denial is absolute in the text's own terms, closing with “Nor is there to Him any equivalent” (112:4). The classical commentators read it as complete. Ibn Kathir's commentary on the surah records the gloss of God's name As-Samad as “One Who does not give birth, nor was He born, because there is nothing that is born except that it will die,” and comments on 112:4: “This means that there is none similar to Him, none equal to Him and there is nothing at all like Him.”

Nicene Christians answer that "begotten, not made" was defined precisely to exclude the creaturely begetting, so the creed's begetting was never the kind the denial pictures. Whether eternal generation falls under the Quran's denial of walad is exactly where the two faiths part. That God has no son in any sense is, for Islam, an article of faith.