'Immorality' in the Bible

It is reported everywhere [that there] is sexual immorality among you, and sexual immorality of such a kind which [does] not [even exist] among the Gentiles, so that someone has the wife of [his] father.

Food [is] for the stomach, and the stomach for food, but God will abolish {both of them}. Now the body [is] not for sexual immorality, but for the Lord, and the Lord for the body.

Flee sexual immorality. Every sin that a person commits is outside his body, but the one who commits sexual immorality 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,