Adam Clarke's Commentary on the Bible - Romans 7:4
Wherefore, my brethren - This is a parallel case. You were once under the law of Moses, and were bound by its injunctions; but now ye are become dead to that law - a modest, inoffensive mode of speech, for, The law, which was once your husband, is dead; God has determined that it shall be no longer in force; so that now, as a woman whose husband is dead is freed from the law of that husband, or from her conjugal vow, and may legally be married to another, so God, who gave the law under which... read more
Adam Clarke's Commentary on the Bible - Romans 7:3
So then, if, while her husband liveth - The object of the apostle's similitude is to show that each party is equally bound to the other; but that the death of either dissolves the engagement. So - she is no adulteress, though she be married to another - And do not imagine that this change would argue any disloyalty in you to your Maker; for, as he has determined that this law of ordinances shall cease, you are no more bound to it than a woman is to a deceased husband, and are as free to... read more