Thematic Bible: This plan is thwarted by his nephew

But Paul's sister's son heard of their lying in wait, and he came and entered into the barracks and told Paul. Paul summoned one of the centurions, and said, "Bring this young man to the commanding officer, for he has something to tell him." So he took him, and brought him to the commanding officer, and said, "Paul, the prisoner, summoned me and asked me to bring this young man to you, who has something to tell you." read more.
The commanding officer took him by the hand, and going aside, asked him privately, "What is it that you have to tell me?" And he said, "The Jews have agreed to ask you to bring Paul down to the council tomorrow, as though intending to inquire somewhat more accurately concerning him. Therefore do not yield to them, for more than forty men lie in wait for him, who have bound themselves under a curse neither to eat nor to drink until they have killed him. Now they are ready, looking for the promise from you." So the commanding officer let the young man go, charging him, "Tell no one that you have revealed these things to me."