See Poole on "Matthew 5:32", where this is expounded; also, See Poole on "Matthew 19:9", and See Poole on "Mark 10:11".
Related Commentaries of Luke 16:18
Luke 16:18
18 Whosoever putteth away his wife, and marrieth another, committeth adultery: and whosoever marrieth her that is put away from her husband committeth adultery.