I Samuel 16:7

If ye do return unto the Lord with all your hearts, then put away the strange gods and Ashtaroth from among you, and prepare your hearts unto the Lord, and serve him only.

Little children, keep yourselves from idols.—Come out from among them, and be ye separate, saith the Lord, and touch not the unclean thing; and I will receive you, and will be a Father unto you, and ye shall be my sons and daughters, saith the Lord Almighty.—Ye cannot serve God and Mammon.

My son, give me thine heart.—Set your affection on things above, not on things on the earth.

Son of man, these men have set up their idols in their heart and put the stumblingblock of their iniquity before their face: should I be enquired of at all by them?—Mortify . . . your members which are upon the earth; fornication, uncleanness, inordinate affection, evil concupiscence, and covetousness, which is idolatry.—They that will be rich fall into temptation and a snare. For the love of money is the root of all evil: which while some coveted after, they have erred from the faith, and pierced themselves through with many sorrows. But thou, O man of God, flee these things.

The Lord is a God of knowledge, and by him, actions are weighed.—That which is highly esteemed among men is abomination in the sight of God.—The Lord seeth not as man seeth; for man looketh on the outward appearance, but the Lord looketh on the heart.—Be not deceived, God is not mocked: for whatsoever a man soweth, that shall he also reap. For he that soweth to his flesh shall of the flesh reap corruption; but he that soweth to the Spirit shall of the spirit reap life everlasting.

What is a man profited if he shall gain the whole world, and lose his own soul? or what shall a man give in exchange for his soul?—What things were gain to me, those I counted loss for Christ.