Acts 12:1-6

1 Now about that time Herod the king put forth his hands to afflict certain of the church.
2 And he killed James the brother of John with the sword.
3 And when he saw that it pleased the Jews, he proceeded to seize Peter also. And [those] were the days of unleavened bread.
4 And when he had taken him, he put him in prison, and delivered him to four quaternions of soldiers to guard him; intending after the Passover to bring him forth to the people.
5 Peter therefore was kept in the prison: but prayer was made earnestly of the church unto God for him.
6 And when Herod was about to bring him forth, the same night Peter was sleeping between two soldiers, bound with two chains: and guards before the door kept the prison.
The American Standard Version is in the public domain.