Matthew 26:3-5, 14-16

At that very moment, the party of high priests and religious leaders was meeting in the chambers of the Chief Priest named Caiaphas, conspiring to seize Jesus by stealth and kill him. They agreed that it should not be done during Passover Week. “We don’t want a riot on our hands,” they said.

That is when one of the Twelve, the one named Judas Iscariot, went to the cabal of high priests and said, “What will you give me if I hand him over to you?” They settled on thirty silver pieces. He began looking for just the right moment to hand him over.