Matthew 14:3,4
For Herod had laid hold on John, and bound him, and put him in prison for Herodias' sake, his brother Philip's wife.
Nave's Topical Index—AKJV

Mark 6:17-19
For Herod himself had sent forth and laid hold on John, and bound him in prison for Herodias' sake, his brother Philip's wife: for he had married her.
Nave's Topical Index—AKJV