11 Bible Verses about Holiness,  Worldly Separation

And he called to him all the multitude, and said unto them, hear me all of you, and understand. There is nothing from without a man, that entering into him, can make him unclean: but the things which come out from him, these are the things which make a man unclean. If any man hath ears to hear, let him hear.read more.
And when he was come into the house from the multitude, his disciples asked him concerning the parable. And he saith to them, Are ye also so defective of intelligence? Do you not consider, that every thing from without that entereth into a man, cannot make him unclean? because it entereth not into his heart, but into his belly, and goeth out into the vault, carrying off all the impurities of the food.

But Peter said, By no means, Lord for I have never at any time eaten of any thing common or unclean.

crying out, Men of Israel, help! This is the man, who, by his preaching, sets all men everywhere against the people, and the law, and this place: yea and more still, hath brought Greeks into the temple, and defiled this holy place:

Any man who treated the law of Moses with neglect, was put to death, without mercy, on the deposition of two or three witnesses: by how much, think ye, shall he be counted worthy of more condign punishment who hath trampled on the Son of God, and regarded the blood of his testament, by which he was sanctified, as an unclean thing, and hath treated the gracious Spirit contumeliously?

NOW a certain man named Ananias, with Sapphira his wife, had sold an estate, and secreted a part of the price paid, his wife also being privy to the transaction, and he brought a part, and laid it at the apostles' feet. But Peter said, O Ananias! why hath Satan filled thy heart that thou shouldst lie to the Holy Ghost, and secrete something from the price of the estate?read more.
it remained unsold, was it not vested in thee? and when sold, was it not in thine own power? why then hast thou determined in thine heart to do this deed? thou hast not lied unto men, but unto God. Then Ananias, hearing those words, sunk down and expired: and great dread fell upon all who heard these things. Then the young men arose, and swathed him up, and carrying him out, buried him. Now it came to pass at the distance of about three hours, his wife also, not knowing what had passed, came in. And Peter addressed her, Tell me, if ye sold the estate for so much? And she said, Yes, for so much. Then Peter said unto her, How is it that ye have conspired together to tempt the Spirit of the Lord? see, the feet of them who have buried thy husband are at the door, and shall carry thee out. Then she fell instantly at his feet, and expired: and the young men entering, found her dead, and carrying her out, buried her with her husband.

If ye were of the world, the world would love its own: but because ye are not of the world, but I have elected you out of the world, for this very cause the world hateth you.

Ye adulterers and adultresses, know ye not that friendship with the world is enmity against God? whosoever therefore will be a friend of the world is set down an enemy to God.

But ye are an elect race, a royal priesthood, a holy nation, a people acquired by purchase; that ye should publish abroad the excellencies of him, who hath called you out of darkness into his marvellous light: who in time past were not a people, but are now the people of God; who had not obtained mercy, but are now the objects of mercy. Beloved, I exhort you, as strangers and sojourners, Abstain from carnal lusts, which war against the soul;

I have given them thy word and the world hath hated them, because they are not of the world, even as I am not of the world. I entreat not that thou shouldest take them out of the world, but that thou shouldest preserve them from the wicked one. They are not of the world, just as I am not of the world.

Nevertheless the stable foundation of God standeth firm, having this seal, the Lord knoweth those who belong to him. And, let every man who mentions the name of the Lord depart from unrighteousness.

Pure religion and undefiled with God even the Father is this, To pay diligent attention to the orphans and widows in their affliction, and to preserve himself spotless from the world.