8 Bible Verses about Apostate Believers

Brethren, if a man be overtaken in a fault, you who are spiritual, restore such a one in the spirit of meekness; considering yourself, lest you also be tempted.

In the name of our Lord Jesus Christ, when you are gathered together, and my spirit, with the power of our Lord Jesus Christ, To deliver such a one unto Satan for the destruction of the flesh, that the spirit may be saved in the day of the Lord Jesus.

Brethren, if any of you do err from the truth, and one convert him; Let him know, that he who converts the sinner from the error of his way shall save a soul from death, and shall hide a multitude of sins.

If any man see his brother sin a sin which is not unto death, he shall ask, and he shall give him life for them that sin not unto death. There is a sin unto death: I do not say that he shall pray for it. All unrighteousness is sin: and there is a sin not unto death.

Let him know, that he who converts the sinner from the error of his way shall save a soul from death, and shall hide a multitude of sins.

For it is impossible for those who were once enlightened, and have tasted of the heavenly gift, and were made partakers of the Holy Spirit, And have tasted the good word of God, and the powers of the age to come, If they shall fall away, to renew them again unto repentance; seeing they crucify to themselves the Son of God afresh, and put him to an open shame.read more.
For the earth which drinks in the rain that comes often upon it, and brings forth plants fit for them by whom it is cultivated, receives blessing from God: But that which bears thorns and briars is worthless, and is near unto cursing; whose end is to be burned.

For if we sin willfully after we have received the knowledge of the truth, there remains no more sacrifice for sins, But a certain fearful expectation of judgment and fiery indignation, which shall devour the adversaries. He that despised Moses' law died without mercy under two or three witnesses:read more.
Of how much worse punishment, suppose you, shall he be thought worthy, who has trodden under foot the Son of God, and has counted the blood of the covenant, with which he was sanctified, an unholy thing, and has done insult unto the Spirit of grace?

So then because you are lukewarm, and neither cold nor hot, I will spew you out of my mouth.