The Word Became Flesh

“And the Word became flesh and dwelt among us” (John 1:14). Five Greek words — καὶ ὁ λόγος σὰρξ ἐγένετο — and every philosophy of the ancient world is overturned. That the divine Logos, the rational order behind all things, should become sarx — not merely “human,” but flesh, with its connotations of weakness and mortality — was, as the church fathers loved to say, the great and saving scandal.

Not conversion but assumption

The Word became flesh without ceasing to be the Word. The classical grammar is careful here: the Son did not turn into a man (as water turns to ice), nor did he merely wear humanity (as an actor wears a costume). He assumed a complete human nature — body, mind, will, affections — into the unity of his divine person. One person, two natures, “without confusion, without change, without division, without separation,” as Chalcedon confessed in 451.¹

The commentary on John 1 traces how the prologue builds to this claim; Philippians 2:5–11 gives its poetic parallel — he “emptied himself” not by subtracting deity but by adding servanthood.

Why flesh?

Gregory of Nazianzus supplied the enduring axiom: what is not assumed is not healed.² If the Son took a body but not a human mind, our minds remain unredeemed; if he took humanity but not its weakness, our weakness remains unvisited. The full assumption of human nature is the precondition of full salvation — which is why the strands of the atonement all presuppose the incarnation. Only one who shares our nature can stand in our place; only one who is God can bear the weight.

He kept it

The incarnation was not a thirty-three-year experiment. The risen Christ eats fish, shows his scars, ascends bodily. Hebrews grounds present comfort in this present humanity: we have a high priest who is not “unable to sympathize with our weaknesses” (Hebrews 4:15), tempted as we are, now interceding as one of us. The Word became flesh — and the tense of the church’s confession is present: he is flesh, glorified, forever. Our nature is already home in God.

Footnotes

1. The Definition of Chalcedon (AD 451), the church’s grammar for speaking of the two natures of Christ in one person. ↩

2. Gregory of Nazianzus, Epistle 101 (to Cledonius): “That which he has not assumed he has not healed.” ↩