2 Peter 2:21 NIV

Ezekiel 18:24 niv
“But if a righteous person turns from their righteousness and commits sin and does the same detestable things the wicked person does, will they live? None of the righteous things that person has done will be remembered. Because of the unfaithfulness they are guilty of and because of the sins they have committed, they will die.

Ezekiel 3:20 niv
“Again, when a righteous person turns from their righteousness and does evil, and I put a stumbling block before them, they will die. Since you did not warn them, they will die for their sin. The righteous things that person did will not be remembered, and I will hold you accountable for their blood.

Hebrews 6:4-6 niv
It is impossible for those who have once been enlightened, who have tasted the heavenly gift, who have shared in the Holy Spirit, who have tasted the goodness of the word of God and the powers of the coming age and who have fallen away, to be brought back to repentance. To their loss they are crucifying the Son of God all over again and subjecting him to public disgrace.

James 4:17 niv
If anyone, then, knows the good they ought to do and doesn’t do it, it is sin for them.