To the married I give this command (not I, but the Lord): A wife must not separate from her husband.1
References for 1 Corinthians 7:10
But if she does, she must remain unmarried or else be reconciled to her husband.2 And a husband must not divorce his wife.
References for 1 Corinthians 7:11
To the rest I say this (I, not the Lord):3 If any brother has a wife who is not a believer and she is willing to live with him, he must not divorce her.
References for 1 Corinthians 7:12
And if a woman has a husband who is not a believer and he is willing to live with her, she must not divorce him.
For the unbelieving husband has been sanctified through his wife, and the unbelieving wife has been sanctified through her believing husband. Otherwise your children would be unclean, but as it is, they are holy.4
References for 1 Corinthians 7:14
But if the unbeliever leaves, let him do so. A believing man or woman is not bound in such circumstances; God has called us to live in peace.5
References for 1 Corinthians 7:15
How do you know, wife, whether you will save6 your husband?7 Or, how do you know, husband, whether you will save your wife?
References for 1 Corinthians 7:16