Nevertheless, because of sexual immorality, let each man have his own wife, and let each woman have her own husband.
1 Corinthians 7:2
Surrounding context
7:1 Now concerning the things of which you wrote to me: It is good for a man not to touch a woman.
7:2 Nevertheless, because of sexual immorality, let each man have his own wife, and let each woman have her own husband.
7:3 Let the husband render to his wife the affection due her, and likewise also the wife to her husband.