'Unbelievers' in the Bible

the master of that slave will come on a day that he does not expect and at an hour that he does not know, and will cut him in two and assign his place with the unbelievers.

But brother goes to court with brother, and this before unbelievers!

If any of the unbelievers invites you, and you want to go, eat everything that is set before you, {asking no questions} for the sake of the conscience.

So then, tongues are for a sign not to those who believe, but to unbelievers, but prophecy [is] not for unbelievers, but for those who believe.

Therefore, if the whole church comes together at the same [time] and all speak with tongues, and outsiders or unbelievers enter, will they not say that you are out of your minds?

among whom the god of this age has blinded the minds of the unbelievers, so that they would not see the light of the gospel of the glory of Christ, who is the image of God.

Do not become unevenly yoked with unbelievers, for what participation [is there between] righteousness and lawlessness? Or what fellowship [does] light [have] with darkness?

But [as] for the cowards and unbelievers and detestable persons and murderers and sexually immoral people and sorcerers and idolaters and all liars, their share [is] in the lake that burns with fire and sulphur, which is the second death.