When evening came, he arrived with the Twelve. While they were reclining and eating, Jesus said, “Truly I tell you, one of you will betray me — one who is eating with me.” They began to be distressed and to say to him one by one, “Surely not I?” He said to them, “It is one of the Twelve — the one who is dipping bread in the bowl with me. For the Son of Man will go just as it is written about him, but woe to that man by whom the Son of Man is betrayed! It would have been better for him if he had not been born.”
Mark 14:17‭-‬21 CSB

Then one of the Twelve, the man called Judas Iscariot, went to the chief priests and said, “What are you willing to give me if I hand him over to you?” So they weighed out thirty pieces of silver for him. And from that time he started looking for a good opportunity to betray him.
Matthew 26:14‭-‬16 CSB

Now when it was time for supper, the devil had already put it into the heart of Judas, Simon Iscariot’s son, to betray him. Jesus knew that the Father had given everything into his hands, that he had come from God, and that he was going back to God.
John 13:2‭-‬3 CSB

The Festival of Unleavened Bread, which is called Passover, was approaching. The chief priests and the scribes were looking for a way to put him to death, because they were afraid of the people. Then Satan entered Judas, called Iscariot, who was numbered among the Twelve. He went away and discussed with the chief priests and temple police how he could hand him over to them. They were glad and agreed to give him silver. So he accepted the offer and started looking for a good opportunity to betray him to them when the crowd was not present.
Luke 22:1‭-‬6 CSB

The chief priests took the silver and said, “It’s not permitted to put it into the temple treasury, since it is blood money.” They conferred together and bought the potter’s field with it as a burial place for foreigners. Therefore that field has been called “Field of Blood” to this day. Then what was spoken through the prophet Jeremiah was fulfilled: They took the thirty pieces of silver, the price of him whose price was set by the Israelites, and they gave them for the potter’s field, as the Lord directed me.
Matthew 27:6‭-‬10 CSB