But if one is not allowed to remarry, this liberty would be no liberty at all, but would only prove a snare and a yoke to them. For if one does not have the gift of celibacy, then he is exposed to sin and judgment. Thirdly, our blessed Savior gives express direction in the case of adultery. According to Jesus, the bond of marriage is in the case of adultery dissolved, and the person that puts away his wife is at liberty to marry again. While Jesus teaches against divorcing the wife and marrying again for any cause whatsoever, the exception of adultery allows the husband to both divorce and remarry.
Every exception is a particular case that is contradictory to the general rule.
This could be stated another way. Also, every good interpreter knows that where the same thing is reported by several writers, the briefer and shorter expressions are to be measured and interpreted by the fuller and longer accounts. And every general rule in Scripture is to be limited by any exception attached to it in another place of Scripture. Know for certain that there is hardly any general rule of Scripture that does not admit of an exception. It is even more vain to argue that our Savior speaks here with respect to the Jews alone so that the exception clause only has application to them.