Acts 12:4-6

When he had seized him, he put him in prison and handed him over to four squads of soldiers to guard him, intending to bring him before the people after the Passover. So Peter was kept in prison. But the church prayed to God without ceasing for him. The very night when Herod would have brought him out, Peter was sleeping between two soldiers, bound with two chains. And the guards before the door were securing the prison.