'Fornicators' in the Bible

I wrote unto you in an epistle not to company with fornicators:

Yet not altogether with the fornicators of this world, or with the covetous, or extortioners, or with idolaters; for then must ye needs go out of the world.

Know ye not that the unrighteous shall not inherit the kingdom of God? Be not deceived: neither fornicators, nor idolaters, nor adulterers, nor effeminate, nor abusers of themselves with mankind,

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

fornicators, sodomites, kidnappers, liars, perjurers; and if any other thing is opposed to sound teaching,

Let marriage be held every way in honour, and the bed be undefiled; for fornicators and adulterers will God judge.

But to the fearful and unbelieving, and sinners, and those who make themselves abominable, and murderers, and fornicators, and sorcerers, and idolaters, and all liars, their part is in the lake which burns with fire and brimstone; which is the second death.

Without are the dogs, and the sorcerers, and the fornicators, and the murderers, and the idolaters, and every one that loves and makes a lie.