'Fornication' in the Bible

It is actually reported that there is fornication among you, and of a kind unheard of even among the Gentiles--a man has his father's wife!

But what I meant was that you were not to associate with any one bearing the name of "brother," if he was addicted to fornication or avarice or idol-worship or abusive language or hard-drinking or greed of gain. With such a man you ought not even to eat.

Food of all kinds is meant for the stomach, and the stomach is meant for food, and God will cause both of them to perish. Yet the body does not exist for the purpose of fornication, but for the Master's service, and the Master exists for the body;

Flee from fornication. Any other sin that a human being commits lies outside the body; but he who commits fornication sins against his own body.

But because there is so much fornication every man should have a wife of his own, and every woman should have a husband.

Nor may we be fornicators, like some of them who committed fornication and on a single day 23,000 of them fell dead.