John 13:18 quotes Scripture about betrayal, expanding on verse 11's statement that Jesus knew who would betray Him.

John 13:26 identifies Judas as the betrayer Jesus knew about in v11, showing his foreknowledge in action.

John 2:25 shows Jesus knew all people's hearts, explaining his ability to know the betrayer here.

In John 6:64-71, Jesus earlier said he knew from the start who would betray him, directly paralleling this moment.

John 17:12 names Judas as the 'son of perdition' destined to be lost, connecting to Jesus' foreknowledge of betrayal.

Matthew 26:24 pronounces woe on the betrayer, deepening the gravity of what Jesus knew in this verse.

Matthew 26:25 records Judas asking if he is the betrayer and Jesus affirming it, fulfilling Jesus' knowledge here.