For Herod himself had ordered that John be arrested and bound and imprisoned, on account of his brother Philip’s wife Herodias, whom Herod had married.
KJV
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.
ASV
For Herod himself had sent forth and laid hold upon John, and bound him in prison for the sake of Herodias, his brother Philip’s wife; for he had married her.