“To the married I give this command (not I, but the Lord): A wife must not separate from her husband.”
1 Corinthians 7:10 (BSB)
Context Reading
8Now to the unmarried and widows I say this: It is good for them to remain unmarried, as I am. 9But if they cannot control themselves, let them marry. For it is better to marry than to burn with passion. 10To the married I give this command (not I, but the Lord): A wife must not separate from her husband. 11But if she does, she must remain unmarried or else be reconciled to her husband. And a husband must not divorce his wife. 12To the rest I say this (I, not the Lord): If a brother has an unbelieving wife and she is willing to live with him, he must not divorce her.