1 Corinthians 7:10 in the World English Bible
But to the married I command—not I, but the Lord—that the wife not leave her husband
Context
9 But if they cannot contain, let them marry: for it is better to marry than to burn.
10 And unto the married I command, yet not I, but the Lord, Let not the wife depart from her husband:
11 But and if she depart, let her remain unmarried, or be reconciled to her husband: and let not the husband put away his wife.