Bible Verses About being friends with non christians

Nevertheless, if thou warn the wicked of his way to turn from it; if he do not turn from his way, he shall die in his iniquity; but thou hast delivered thy soul.

He that is not with me is against me; and he that gathereth not with me scattereth abroad.

And he said unto them, Go ye into all the world, and preach the gospel to every creature.

He that believeth and is baptized shall be saved; but he that believeth not shall be damned.

I came not to call the righteous, but sinners to repentance.

Because the carnal mind is enmity against God: for it is not subject to the law of God, neither indeed can be.

And be not conformed to this world: but be ye transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect, will of God.

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

Be not deceived: evil communications corrupt good manners.

Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?

As we have therefore opportunity, let us do good unto all men, especially unto them who are of the household of faith.

Continue in prayer, and watch in the same with thanksgiving;

Who will have all men to be saved, and to come unto the knowledge of the truth.

Ye adulterers and adulteresses, know ye not that the friendship of the world is enmity with God? whosoever therefore will be a friend of the world is the enemy of God.

If there come any unto you, and bring not this doctrine, receive him not into your house, neither bid him God speed: