Matthew 12:31
Therefore I tell you, every sin and blasphemy will be forgiven men, but the blasphemy against the Spirit will not be forgiven.
1 Corinthians 6:9-11
Or do you not know that the unrighteous will not inherit the kingdom of God? Do not be deceived; neither the immoral, nor idolaters, nor adulterers, nor sexual perverts,
1 John 1:7
But if we walk in the light, as he is in the light, we have fellowship with one another, and the blood of Jesus his Son cleanses us from all sin.
1 John 1:9
If we confess our sins, he is faithful and just, and will forgive us our sins and cleanse us from all unrighteousness.
1 John 2:1-2
My little children, I write this to you so that you may not sin. But if anyone does sin, we have an advocate with the Father, Jesus Christ the righteous.