Matthew 5:32
But I say to you, That whoever shall put away his wife, saving for the cause of fornication, causes her to commit adultery: and whoever shall marry her that is divorced commits adultery.
Topicalbible.org—AKJV

Jeremiah 3:1
They say, If a man put away his wife, and she go from him, and become another man's, shall he return to her again? shall not that land be greatly polluted? but you have played the harlot with many lovers; yet return again to me, said the LORD.
Topicalbible.org—AKJV