Luke 22:1-6

Now the Festival of Unleavened Bread, which is called the Passover, was approaching. [Lev 23:4, 5; Ezek 45:21; Matt 26:2-5; Mark 14:1, 2] The chief priests and the scribes were looking for a way to put Him to death; for they were afraid of the people [who listened devotedly to His teaching, and who respected His spiritual wisdom]. Then Satan entered Judas, the one called Iscariot, who was one of the twelve [disciples]. And he went away and discussed with the chief priests and officers how he might betray Him and hand Him over to them. They were delighted and agreed with him to give him money. So he consented, and began looking for a good opportunity to betray Jesus to them [at a time when He was] separated from the crowd [because the people might riot or stop them from seizing Him].