υἱοθεσία

From the study of Romans 8:15

Range of meaning

A compound of huios ('son') and thesis ('placing, setting'): 'the placing of someone as a son'. It is the technical Greek term for legal adoption, the act by which a person who was not a man's natural son became his son in law, with the name, the family, the duties and, crucially, the inheritance that went with it. In the New Testament only Paul uses it (Romans 8:15, 23; 9:4; Galatians 4:5; Ephesians 1:5).

Against the English

KJV/WEB 'adoption' is accurate but, to modern ears, can drop the 'son' half of the word and suggest mainly a rescue of a child in need. BSB 'adoption to sonship' and ESV/NASB 'adoption as sons' restore the 'son' element. NLT 'adopted you as his own children' is inclusive but loses the heir-status overtone that 'son' carried, which verse 17 ('heirs of God') depends on.

How it drifted

Modern adoption is mostly about infants and the welfare of the child. Roman adoption was largely about the father's line and estate, often involved adults, and was above all a change of legal status and of who held power over you. The emotional warmth is not wrong, but the original weight lay on status, belonging and inheritance.

Used elsewhere in the period

The word is not in the Greek Old Testament (the Septuagint). It appears in Hellenistic inscriptions from about the 2nd century BC onward in adoption formulas, and in Greek historians of the Roman period describing Roman adoptions. Roman legal sources (the jurist Gaius, Institutes 1.97–107) describe the procedures: adoptio of someone still under his father's authority, by a ritual 'sale' before witnesses, and adrogatio of an independent adult, who brought his whole household and property under the new father. Jewish texts express the same idea without the word: God says of David's heir, 'I will be his father, and he shall be my son' (2 Samuel 7:14), and Jubilees 1:23–25 promises that God will create a holy spirit in his people and 'they will be called sons of the living God'.

From the study of Ephesians 1:5

Range of meaning

Literally 'son-placing' (huios 'son' + thesis 'placing'). It was the technical term for legal adoption: formally taking someone, often an adult, into a family as a son, with the rights of an heir and the father's name.

Against the English

KJV and WEB 'adoption of/as children' and BSB/YLT/NASB 'adoption as sons'. 'Children' is more inclusive but loses the heir-and-son idea that drove the metaphor. 'Sons' keeps the legal picture but can sound as if women are left out. In Paul's world 'son' meant the one who inherits, and Paul applies that status to all believers (Gal 3:26–29; cf. 2 Cor 6:18, 'sons and daughters').

How it drifted

Modern adoption is mostly about rescuing and caring for infants and young children. In the Roman world, adoption was mainly about succession: securing an heir, passing on name, property and family religion. Adult adoptions were common.

Used elsewhere in the period

Not found in the Septuagint. It is common in Hellenistic inscriptions and papyri from the 2nd century BC onward in adoption formulas. In the NT only Paul uses it: Rom 8:15, 23; 9:4 (adoption belongs to Israel); Gal 4:5; Eph 1:5. Roman emperors were famously adopted heirs: Octavian (Augustus) was Julius Caesar's adopted son and called himself divi filius, 'son of the divine one'. Jewish Scripture had no formal adoption law but spoke of Israel as God's son (Exod 4:22; Hos 11:1) and of the Davidic king as God's son (2 Sam 7:14).

From the study of Romans 8:23

Range of meaning

Literally 'placing as a son.' It is the legal act or status of adoption, by which someone becomes a son and heir in a family not his by birth. Inscriptions use it as a technical term for adoption. In the NT only Paul uses it (Rom 8:15, 8:23, 9:4; Gal 4:5; Eph 1:5).

Against the English

Modern 'adoption' suggests a couple taking in a needy infant out of compassion. In the Greco-Roman world adoption was most often of an adult or older son. It was done to secure an heir and carry on the family name, property and household religion. 'Adoption as sons' (BSB, ESV, NASB) or 'to sonship' (NIV) keeps the idea of heirship. Plain 'adoption' (KJV, WEB) can lose it.

How it drifted

Modern adoption practice, child-welfare law and sentimental images of rescuing orphans have given the English word a different centre of gravity. The ancient focus was legal status, inheritance and belonging to a new head of the household.

Used elsewhere in the period

The word does not occur in the LXX, but the idea of God's 'son' does: Israel (Exod 4:22; Hos 11:1) and the Davidic king (2 Sam 7:14; Ps 2:7). Paul lists 'the adoption' first among Israel's privileges in Rom 9:4. In Roman law, adoptio and adrogatio moved a person into a new family under a new paterfamilias (the legal head of the household), and could cancel old obligations. Hellenistic inscriptions use υἱοθεσία for the same kind of legal adoption.