Contradiction with Mark 14:1
This verse also names that the chief priests and scribes sought to kill Jesus but starts with "After two days was the feast of the Passover," creating a potential timeline discrepancy with Matthew 26:3.
Mark 14:1: After two days was [the feast of] the passover, and of unleavened bread: and the chief priests and the scribes sought how they might take him by craft, and put [him] to death.
Contradiction with John 11:53
This verse states that the council sought to kill Jesus much earlier, after raising Lazarus, suggesting a prolonged plotting period.
John 11:53: Then from that day forth they took counsel together for to put him to death.
Contradiction with Luke 22:2
In this verse, the chief priests and scribes also seek to kill Jesus, but it omits the gathering at the palace and uses slightly different timing context.
Luke 22:2: And the chief priests and scribes sought how they might kill him; for they feared the people.