F3 reasoning: True humanity of Christ

Reasoning steps: True humanity of Christ

Verdicts: F3 · True humanity of Christ. Method: conventions, scoring and proximity eras. Scripture is the primary measure; fathers are weighed by era (Era I to c. 150 = 1.0, II = 0.8, III = 0.6, IV = 0.4).

F03.1: Did the Son take a full human nature?

Step F03.1.1: Scripture

John 1:14 (σὰρξ ἐγένετο); Luke 2:52 (grew in wisdom); Heb 2:14–17 (‘made like his brothers in every respect’); 4:15 (tempted, without sin); 1 John 4:2–3 (denying Christ ‘come in the flesh’ is antichrist).

Step F03.1.2: Patristic evidence

Ignatius (Era I): Christ ‘was truly born, and ate and drank’, ’truly of the seed of David according to the flesh’. Gregory: ’that which He has not assumed He has not healed’. Sources: ignatius-f03-s1 · ignatius-f03-s2 · gregory-nazianzen-f03-s1.

Step F03.1.3: Weighing decision

Unanimous from Era I against docetism, and in Era III against Apollinarius (a human mind). Verdict: consensus.

Confidence: High.

Step F03.1.4: Source-proximity weighing

Scripture (benchmark): Christ is ’like his brothers in every respect’ except sin (Heb 2:17; 4:15), and denying his coming in the flesh is antichrist (1 John 4:2–3). (Scripture confidence: high)
Assessment: Scripture and Era I agree. Menno Simons’s celestial-flesh view keeps true humanity but denies that it is of Mary’s substance, which departs partly from Ignatius’s ‘of the seed of David’ (Rom 1:3).

F03.2: Did Christ have a human mind and will?

Step F03.2.1: Scripture

Luke 2:52 (Jesus ‘increased in wisdom’); Mark 13:32 (the Son does not know the hour); Matt 26:38 (‘my soul is very sorrowful’); Luke 22:42 (’not my will, but yours’); Heb 5:8 (learned obedience).

Step F03.2.2: Patristic evidence

Gregory Nazianzen (Era III) against Apollinarius: ‘if He has a soul, and yet is without a mind, how is He man, for man is not a mindless animal?’ Constantinople I (381) condemns the Apollinarians. Sources: gregory-nazianzen-f03-s2 · constantinople-i-f03-s1.

Step F03.2.3: Weighing decision

Explicit in Era III, when Apollinarius denied it; earlier writers assume full humanity (F03.1). Verdict: consensus once the question was raised. The two-wills question is S16.2.

Confidence: High.

Step F03.2.4: Source-proximity weighing

Scripture (benchmark): Jesus grew in wisdom, was sorrowful in soul and did not know the hour (Luke 2:52; Matt 26:38; Mark 13:32). (Scripture confidence: high)
Assessment: Scripture is explicit; patristic explicitness is Era III. All nine confess a human soul.

F03.3: Was Christ’s humanity sinless (without personal sin)?

Step F03.3.1: Scripture

Heb 4:15 (tempted as we are, yet χωρὶς ἁμαρτίας, without sin); Heb 7:26 (holy, innocent, unstained, separated from sinners); 2 Cor 5:21 (he knew no sin); 1 Pet 2:22 (he committed no sin); 1 John 3:5. Scripture affirms full humanity (F03.1) and a human mind (F03.2) while denying that Christ ever sinned personally.

Step F03.3.2: Patristic evidence

Chalcedon (451): Christ is ‘made in all things like us, sin only excepted’. Leo’s Tome (449): he ’took the form of a slave without stain of sin’; ’neither sin could pollute nor death retain’ him. Sources: chalcedon-f03-s1 · leo-the-great-f03-s1.

Step F03.3.3: Weighing decision

Reading A: Christ’s humanity included personal sin or a sinful will. Reading B: he is like us in all things except sin. B is chosen. Scripture is explicit; Chalcedon and Leo fix the formula. Complements F03.1–2 (true humanity and mind) by ruling out making him a sinner.

Confidence: High.