Then Peter came to himself and said, “Now I am sure that the Lord has sent his angel and rescued me from the hands of Herod and from all that the Jewish people were expecting.”
But do not be persuaded by them, for more than forty of their men are lying in ambush for him. They have bound themselves by an oath neither to eat nor drink until they kill him. They are ready now and are waiting for your consent.”
and requested, as a favor to them against Paul, to have him transferred to Jerusalem. They were, in fact, planning an ambush to kill him along the way.