John 13:30 shows Judas taking the morsel and leaving into the night — the immediate consequence of this identification.

John 13:2 reveals the devil had already put betrayal in Judas's heart — this verse (26) is the outward identification of that plot.

John 13:11 states Jesus already knew the betrayer — adds divine foresight to the symbolic act of giving the morsel.

John 6:70 predicts 'one of you is a devil' — now Jesus fulfills that prophecy by identifying the betrayer.

John 6:71 names Judas as the betrayer, providing the identity hinted at when Jesus gives the sop.

John 12:4 introduces Judas as the betrayer and his greed — foreshadowing the role he fulfills here.

Matthew 26:23 parallels this: Jesus says the one who dips with him is the betrayer, clarifying the sign of the sop.

Mark 14:20 gives a parallel identification: 'one who dips with me' — reinforcing the same sign Jesus uses here.

Luke 22:21 echoes this: 'the hand of him who betrays me is with me on the table' — same moment of exposure.

Psalm 41:9 is quoted in John 13:18 as prophecy of betrayal by a close friend sharing bread — here that prophecy is enacted.

Luke 22:3 says Satan entered Judas — in John 13:27 this happens after the bread, showing the spiritual context of the act.