The argument of John 8 has been escalating. Jesus has been making increasingly elevated claims, and the religious leaders have been pushing back. The final exchange: “Are you greater than our father Abraham?” Jesus says Abraham rejoiced to see his day and saw it. They respond: you're not yet fifty years old; have you seen Abraham? And then the most explosive sentence in the chapter — not “I was” (which would be a historical claim) but “I am” (which is the divine name). The crowd picks up stones. They understand exactly what he has claimed.

From the writers we read together

William Lane Craig

philosopher and Christian apologist, author of Reasonable Faith

Craig has spent his career arguing that the historical evidence for the resurrection is sufficient to confirm the high Christology of John's Gospel — that the “I AM” claims of Jesus are not later theological inventions but claims that the historical Jesus made and that the empty tomb vindicates. His argument works in reverse from John 8:58: if Jesus rose from the dead, then his claims to be the divine name made flesh are true. If they are true, then “before Abraham was, I AM” is not blasphemy but biography.

Craig also presses the philosophical implication of egō eimi: divine being is categorically different from creaturely becoming. Everything that exists in time — Abraham, molecules, galaxies — came into being and will cease to be. The one who says “I AM” without a past or future tense is claiming to be the ground of all being, not a being among beings. Jesus is not claiming to have lived a very long time; he is claiming to be the reason anything has a time to live in at all.