What therefore God hath conjoined by making one flesh of a man and a woman, that man cannot separate, but God alone. Man separates, when we dismiss the first wife because we desire a second; but it is God who separates, when by common consent [1 Cor 7:5], for the sake of serving God, we so have wives as though we had none [1 Cor 7:29].
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).