10 Bible Verses about Holiness,  Worldly Separation

And calling the crowd to Him again, He said to them, Hear all ye, and understand. There is nothing without a man coming into him, which is competent to defile him: but those things coming out from him, these are the things which defile the man. If any one has ears to hear, let him hear.read more.
And when He came from the multitude into the house, His disciples asked Him the parable. And He says to them, Are you still without understanding? Do you not know that everything external entering into a man is not able to defile him? Because it does not go into his heart, but into his stomach, and is cast out into the excrement, purifying all edibles.

And Peter said, By no means, Lord, because I never was in the habit of eating anything unconsecrated and unclean.

The one having rejected the law of Moses dies without mercy before two or three witnesses: of how much more terrible punishment, do you think, the one having trodden under foot the Son of God, and counted the blood of the covenant, by which he was sanctified, common, and insulted the Spirit of grace; be counted worthy!

And a certain man, Ananias by name, with Sapphira his wife, sold an estate and kept back a part from the price, his wife knowing it along with him; and having brought a certain part, laid it at the feet of the apostles. But Peter said, Ananias, wherefore hath Satan filled thy heart to lie to the Holy Ghost, and keep back a part from the price of the land?read more.
Remaining with thee did it not belong to thee; and having been sold, was it not still in thy control? why hast thou placed this thing in thy heart? thou hast not lied to men, but to God. And Ananias hearing these words, having fallen down, breathed out his soul. And great fear came on all hearing; and the young men, rising up, took him, and having carried him out, buried him. And an interval of about three hours supervened, and his wife, not having known what had taken place, came in. And Peter responded to her, Tell me if you sold the place for so much? And she said; Yes, for so much. And Peter said to her; Why has it been agreed with you to tempt the Spirit of the Lord? behold, the feet of those having buried thy husband are at the door, and they will carry thee out. And immediately she fell at his feet, and breathed out her soul; and the young men having come in found her dead, and having carried her out, buried her with her husband.

If you were of the world, the world would love its own: but because you are not of the world, but I have chosen you out of the world, on this account the world hates you.

O adulteresses, do you not know that the friendship of the world is enmity to God? Whosoever therefore may wish to be the friend of the world renders himself the enemy of God.

But you are an elect race, a royal priesthood, a holy nation, a people unto conquest; in order that you may proclaim the virtues of the one having called you out of darkness unto his own marvelous light: who at one time were no people, but now you are the people of God: who had not obtained mercy, lint just now having received mercy. Beloved, I exhort you as pilgrims and strangers, to abstain from the carnal desire which wars against the soul;

I have given unto them thy word; and the world hated them, because they are not of the world, as I am not of the world. I do not pray that you may take them out of the world, but that you may keep them from the evil one. They are not of the world, as I am not of the world.

The foundation of God stands solid indeed, having this seal, The Lord knows them that are his: and; Let every one naming the name of the Lord depart from iniquity.

Pure religion and undefiled with God even the Father is this, to relieve the orphans and widows in their affliction, and keep himself unspotted from the world.