Mark 14:1-2
1 It was now two days before the Passover and the Feast of Unleavened Bread. And the chief priests and the scribes were seeking how to arrest him by stealth and kill him, 2 for they said, "Not during the feast, lest there be an uproar from the people."
Luke 22:1-2
1 Now the Feast of Unleavened Bread drew near, which is called the Passover. 2 And the chief priests and the scribes were seeking how to put him to death, for they feared the people.