Mark 6:17

6:17 his brother Philip’s wife. Herodias was a daughter of Aristobulus, one of the sons of Herod the Great. Other sons of Herod the Great included Herod Antipas and Herod Philip (by different wives). After marrying her half-uncle Herod Philip, Herodias left him for an adulterous relationship with his brother, Herod Antipas. Such were the loose morals, typical of the Herodian dynasty, against which John the Baptist preached (cf. Lev. 18:16, 20).