Mark 6:18

(Mor. 3, 7) I cannot, without the greatest wonder, reflect that he, who was filled even in his mother's womb with the spirit of prophecy, and who was the greatest that had arisen amongst those born of women, is sent into prison by wicked men, is beheaded for the dancing of a girl, and though a man of so great austerity, meets death through such a foul instrument. Are we to suppose that there was something evil in his life, to be wiped away by so ignominious a death? When, however, could he commit a sin even in his eating, whose food was only locusts and wild honey? How could he offend in his conversation, who never quitted the wilderness? How is it that Almighty God so despises in this life those whom He has so sublimely chosen before all ages, if it be not for the reason, which is plain to the piety of the faithful, that He thus sinks them into the lowest place, because He sees how He is rewarding them in the highest, and outwardly He throws them down amongst things despised, because inwardly He draws them up even to incomprehensible things. Let each then infer from this what they shall suffer, whom He rejects, if He so grieves those whom he loves.

(ubi sup.) Ancient history relates, that Philip, the son of Herod the great, under whom the Lord fled into Egypt, the brother of this Herod, under whom Christ suffered, married Herodias, the daughter of king Aretas; but afterwards, that his father-in-law, after certain disagreements had arisen with his son-in-law, had taken his daughter away, and, to the grief of her former husband, had given her in marriage to his enemy; therefore John the Baptist rebukes Herod and Herodias for contracting an unlawful union, and because it was not allowed for a man to marry his brother's wife during his lifetime.

The Evangelist Mark, taking occasion from what went before, here relates the death of the Forerunner, saying, 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. The law also commanded a brother to marry his brother's wife, if he died without children; but in this case there was a daughter, which made the marriage criminal: there follows, Therefore Herodias had a quarrel against him, and would have killed him; but she could not.