Hebrews 6:4

²⁶For if we sin willfully after we have received the knowledge of the truth, there remains no more a sacrifice for sins, ²⁷but a certain fearful expectation of judgment, and a fierceness of fire which will devour the adversaries. ²⁸A man who disregards Moses’ law dies without compassion on the word of two or three witnesses. ²⁹How much worse punishment do you think he will be judged worthy of 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 insulted the Spirit of grace?

²⁰For if, after they have escaped the defilement of the world through the knowledge of the Lord and Savior Jesus Christ, they are again entangled in it and overcome, the last state has become worse for them than the first. ²¹For it would be better for them not to have known the way of righteousness, than after knowing it, to turn back from the holy commandment delivered to them. ²²But it has happened to them according to the true proverb, “The dog turns to his own vomit again,”and “the sow that has washed to wallowing in the mire.”

¹³“You are the salt of the earth, but if the salt has lost its flavor, with what will it be salted? It is then good for nothing, but to be cast out and trodden under the feet of men.

⁶If a man doesn’t remain in me, he is thrown out as a branch and is withered; and they gather them, throw them into the fire, and they are burned.

²¹“Not everyone who says to me, ‘Lord, Lord,’ will enter into the Kingdom of Heaven, but he who does the will of my Father who is in heaven. ²²Many will tell me in that day, ‘Lord, Lord, didn’t we prophesy in your name, in your name cast out demons, and in your name do many mighty works?’

¹⁵looking carefully lest there be any man who falls short of the grace of God, lest any root of bitterness springing up trouble you and many be defiled by it, ¹⁶lest there be any sexually immoral person or profane person, like Esau, who sold his birthright for one meal. ¹⁷For you know that even when he afterward desired to inherit the blessing, he was rejected, for he found no place for a change of mind though he sought it diligently with tears.

³¹Therefore I tell you, every sin and blasphemy will be forgiven men, but the blasphemy against the Spirit will not be forgiven men. ³²Whoever speaks a word against the Son of Man, it will be forgiven him; but whoever speaks against the Holy Spirit, it will not be forgiven him, either in this age, or in that which is to come.

²⁴The unclean spirit, when he has gone out of the man, passes through dry places, seeking rest; and finding none, he says, ‘I will turn back to my house from which I came out.’ ²⁵When he returns, he finds it swept and put in order. ²⁶Then he goes and takes seven other spirits more evil than himself, and they enter in and dwell there. The last state of that man becomes worse than the first.”

³²But remember the former days, in which, after you were enlightened, you endured a great struggle with sufferings:

⁴⁵Then he goes and takes with himself seven other spirits more evil than he is, and they enter in and dwell there. The last state of that man becomes worse than the first. Even so will it be also to this evil generation.”