In John 13:26, Jesus identifies the betrayer by giving the dipped morsel — verse 30 immediately follows that identification.

Matthew 26:14 records Judas going to the chief priests — the same betrayal event narrated from another Gospel's perspective.

Mark 14:10 also recounts Judas approaching the chief priests to betray Jesus — a direct parallel account.

Job 24:13-15 describes evildoers who love darkness — Judas goes out into the night to conceal his treacherous plot.

Isaiah 59:7 pictures those who rush to evil — Judas's exit into the night to betray Jesus literally enacts that description.

Romans 3:15 quotes Isaiah 59:7 on swiftness to shed blood — Judas's hurried betrayal matches Paul's catalog of sin.