So from then on Judas looked for an opportunity to betray Jesus.

Matthew 26:15
and asked, "What are you willing to give me if I hand Him over to you?" And they set out for him thirty pieces of silver.

Matthew 26:17
On the first day of the Feast of Unleavened Bread, the disciples came to Jesus and asked, "Where do you want us to prepare for You to eat the Passover?"

Acts 24:25
As Paul expounded on righteousness, self-control, and the coming judgment, Felix became frightened and said, "You may go for now. When I find the time, I will call for you."

1 Corinthians 16:12
Now about our brother Apollos: I strongly urged him to go to you with the brothers. He was not at all inclined to go now, but he will go when he has the opportunity.

And from that time he sought opportunity to betray him.