Mark 14:10-12

10Then Judas Iscariot, one of the twelve disciples, went to the leading priests to arrange to betray Jesus to them.

11They were delighted when they heard why he had come, and they promised to give him money. So he began looking for an opportunity to betray Jesus.

12On the first day of the Festival of Unleavened Bread, when the Passover lamb is sacrificed, Jesus’ disciples asked him, “Where do you want us to go to prepare the Passover meal for you?”