Acts 23:20-21

20The young man said, ‘Some Jewish men have agreed together to send a message to you. They will ask you to take Paul down to the meeting of the Jewish leaders tomorrow. They will say that they want to ask him more questions. But that is not true.

21Do not agree to do what they want. There are more than 40 men who will be hiding somewhere. They are waiting for Paul. They have made a serious promise to God. They will not eat or drink anything until they have killed Paul. They are now ready to do this. They will be waiting to hear your answer.’