Matthew 12:31
Therefore, I tell you, men will be forgiven for any sin or abusive speech, but abusive speech about the Spirit cannot be forgiven.
1 Corinthians 6:9-11
Do you not know that wrongdoers will not have any share in God's kingdom? Do not let anyone mislead you. People who are immoral or idolaters or adulterers or sensual or given to unnatural vice
1 John 1:7
But if we live in the light, just as he is in the light, we have fellowship with one another, and the blood of Jesus his Son cleanses us from every sin.
1 John 1:9
If we acknowledge our sins, he is upright and can be depended on to forgive our sins and cleanse us from everything wrong.
1 John 2:1-2
My dear children, I am writing you this so that you may not sin; yet if anyone does sin, we have in Jesus Christ one who is upright and will intercede for us with the Father.