Hebrews 10:26
For if we sin wilfully after we have received the knowledge of the truth, no more sacrifice for sins remaineth;
2 Peter 2:20-22
For if having escaped from the defilements of the world by the knowledge of our Lord and Saviour Jesus Christ, they are again enveloped by them and overcome, their last deeds are worse than the first.
1 John 5:16
If any person see his brother committing a sin not unto death, he shall request, and God will grant him life for those that sin not unto death. There is a sin unto death: I say not that he should request for that.
Luke 12:47
And that servant, who knew his master's will, and made no preparation for him, nor did according to his pleasure, shall be beaten with many stripes.
John 9:41
Jesus said to them, If ye were blind, ye should not have had sin: but now ye say, We see; therefore your sin is permanent.
John 13:17
If ye know these things, blessed are ye if ye practise them.
John 15:22-24
Had I not come and spoken to them, they would not have had sin: but now they have no excuse for their sin.
2 Thessalonians 2:10
and in every unrighteous delusion among those who perish: in consequence of which things they received not the love of the truth, that they might be saved.
1 Timothy 1:13
who was before a blasphemer, and a persecutor, and insolently violent, But I was admitted to mercy, for I did it ignorantly in unbelief;
Hebrews 6:4-6
For it is not possible to renew again unto repentance those who have been once illuminated, and have tasted the celestial gift, and have been made partakers of the Holy Ghost,
Matthew 12:43-45
When the unclean spirit is indeed gone out of a man, he traverses through places destitute of water, in search of rest, but cannot find it.
Matthew 12:31-32
Therefore I say unto you, All sin and blasphemy shall be forgiven to men; but the blasphemy against the Spirit shall not be forgiven to men.
James 4:17
Therefore if a man knoweth how to act properly, and doth not, he is criminal.