NET
17 For Herod himself had sent men, arrested John, and bound him in prison on account of Herodias, his brother Philip’s wife, because Herod had married her.
Darby
17 For the same Herod had sent and seized John, and had bound him in prison on account of Herodias, the wife of Philip his brother, because he had married her.
KJV
17 For Herod himself had sent forth and laid hold upon John, and bound him in prison for Herodias' sake, his brother Philip's wife: for he had married her.