Acts 23:18-22
23:18 So the centurion took him and brought him to the commanding officer and said, “The prisoner Paul called me and asked me to bring this young man to you because he has something to tell you.”
23:19 The commanding officer took him by the hand, withdrew privately, and asked, “What is it that you want to report to me?”
23:20 He replied, “The Jews have agreed to ask you to bring Paul down to the council tomorrow, as if they were going to inquire more thoroughly about him.
23:21 So do not let them persuade you to do this, because more than forty of them are lying in ambush for him. They have bound themselves with an oath not to eat or drink anything until they have killed him, and now they are ready, waiting for you to agree to their request.”
23:22 Then the commanding officer sent the young man away, directing him, “Tell no one that you have reported these things to me.”