1559 · John Calvin, Commentary on Malachi 2.14
Hence Solomon, in Proverbs 2:17, calls marriage the covenant of God, for it is superior to all human contracts. So also Malachi declares, that God is as it were the stipulator, who by his authority joins the man to the woman, and sanctions the alliance: God then has testified between thee and thy wife, as though he had said, “Thou hast violated not only all human laws, but also the compact which God himself has consecrated, and which ought justly to be deemed more sacred than all other compacts: as then God has testified between thee and thy wife, and thou now deceivest her, how darest thou to come to the altar? and how canst thou think that God will be pleased with thy sacrifices or regard thy oblations?” He calls her the wife of his youth, because the more filthy is the lust when husbands cast away conjugal love as to those wives whom they have married in their youth. The bond of marriage is indeed in all cases inviolable, even between the old, but it is a circumstance which increases the turpitude of the deed, when any one alienates himself from a wife whom he married when a girl and in the flower of her age: for youth conciliates love; and we also see that when a husband and his wife have lived together for many years, mutual love prevails between them to extreme old age, because their hearts were united together in their youth. It is not then without reason that this circumstance is mentioned, for the lust of the priests was the more filthy and as it were the more monstrous, because they forsook wives whom they ought to have regarded with the tenderest love, as they had married them when they were young: Thou hast dealt unfaithfully with her, he says, though she was thy consort and the wife of thy covenant