'Abandon' in the Bible

But if she does leave him, she must remain unmarried or else be reconciled to her husband. Likewise, a husband must not abandon his wife.

I (not the Lord) say to the rest of you: If a brother has a wife who is an unbeliever and she is willing to live with him, he must not abandon her.

And if a woman has a husband who is an unbeliever and he is willing to live with her, she must not abandon him.