'Sexual Immorality' in the Bible

It is actually reported [everywhere] that there is sexual immorality among you, a kind of immorality that is condemned even among the [unbelieving] Gentiles: that someone has [an intimate relationship with] his father’s wife.

Food is for the stomach and the stomach for food, but God will do away with both of them. The body is not intended for sexual immorality, but for the Lord, and the Lord is for the body [to save, sanctify, and raise it again because of the sacrifice of the cross].

Run away from sexual immorality [in any form, whether thought or behavior, whether visual or written]. Every other sin that a man commits is outside the body, but the one who is sexually immoral sins against his own body.

But because of sexual immorality, let each man have his own wife and let each woman have her own husband.

nor commit sexual immorality, as some of them committed sexual immorality, and twenty-three thousand fell in one day,