Mark 14:10-11, 33

Then Judas Iscariot, who was one of the twelve [disciples], went to the chief priests to betray Jesus to them. [Matt 26:14-16; Luke 22:3-6; John 6:71] When they heard this they were delighted, and promised to give him money. And he began looking for an opportune time to betray Jesus.

He took Peter and James and John with Him, and He began to be deeply distressed and troubled [extremely anguished at the prospect of what was to come].