For it was Herod himself who had sent for John and had him arrested and chained up in prison. He did this to please Herodias, who was [i.e., had been] his brother Philip's wife, but whom Herod had married.

And immediately the king sent a soldier who served as his guard and ordered him to bring John's head to him. So, he went and decapitated him in the prison,

One prisoner, named Barabbas, was kept chained up in prison along with men who had committed murder during a rebellion.