4 Bible Verses about Sinlessness

to confirm your hearts without blame in holiness before God, even our Father, at the coming of our Lord Jesus with all his saints.

And may the God of peace himself purify you wholly, and your whole spirit, and soul, and body, be preserved blameless at the coming of our Lord Jesus Christ.

If we say that we have not sinned, we make him a liar, and his word is not in us.