I AM

The OT root is Exodus 3:14: at the burning bush God answers Moses's question for his name with "I AM THAT I AM… Thus shalt thou say unto the children of Israel, I AM hath sent me unto you." Calvin, on Exodus 3, treats the divine name as deliberately self-grounded — God is not a being among beings but the one whose existence depends on no other; the name preserves this in its grammar. Bullinger, in The Names of God, traces the 'ehyeh root through its derivation into the divine name YHWH itself, and argues that every later OT divine self-disclosure picks up the I AM formula deliberately. Deuteronomy 32:39 — "See now that I, even I, am he, and there is no god with me." The Isaiah divine-discourse section uses the formula extensively: Isa 41:4, 43:10, 43:13, 43:25, 46:4, 48:12 — "I am he" over and over, where the LXX renders consistently egō eimi. Henry, on these chapters, reads the repetition as Isaiah's polemical strategy against the nations' gods: the I AM who alone is contrasts with the they-are-not of every rival pantheon.

Jesus's use of the I AM formula in John runs in two registers. The seven "I AM + predicate" statements anchor titles to specific images: bread (Jn 6:35), light (8:12), door (10:7), shepherd (10:11), resurrection (11:25), way (14:6), vine (15:1). And then the absolute form, used in deliberate echo of the Isaiah and Exodus passages. John 8:24 — "if ye believe not that I am he, ye shall die in your sins." John 8:28 — "then shall ye know that I am he." John 8:58 — "Verily, verily, I say unto you, Before Abraham was, I am" — Westcott, in his Cambridge commentary on John, notes the present tense (egō eimi, not ēn) deliberately echoing the Exodus self-grounded form. The crowd's response confirms the reception: "Then took they up stones to cast at him" (8:59). Calvin observes that the stoning attempt is itself the strongest evidence that Jesus's hearers understood the claim — to Jewish ears, the egō eimi was deity-language. John 13:19 and John 18:5–8 repeat the formula; at the Gethsemane arrest, "As soon then as he had said unto them, I am he, they went backward, and fell to the ground."

Calvin's commentary on John 8 treats the I AM claim as the most direct deity-claim in the Gospels. The grammar of Jn 8:58 is decisive: "before Abraham was [genesthai, came into being], I am [eimi, present tense]" — the contrast is between Abraham's coming-to-be and the Son's continuous, timeless being. Westcott reads the same verse as Jesus's deliberate self-identification with the Exodus-3 voice: the same I AM who sent Moses now stands before the Pharisees in flesh. Henry, on the same passage, presses the interpretive consequence: there is no third option here — Jesus is either claiming what the Pharisees rightly perceive as deity, or he is making a claim no creature has the right to make. Bullinger, in The Names of God, places John's egō eimi within the larger OT I AM trajectory and treats it as the climactic disclosure: every OT I AM moment from Exodus through Isaiah converges in the man standing in the temple. The title therefore is not one Christological claim among many — it is the gathering of every OT divine self-designation onto the lips of the Galilean teacher whose hearers, that day, picked up stones.