But if we walk in the light as He is in the light, we have fellowship with one another, and the blood of Jesus Christ cleanses us from all sin. [1John 1:7]

My little children, these things I write to you, so that you may not sin. And if anyone sins, we have an Advocate with the Father, Jesus Christ the righteous. And He Himself is the propitiation for our sins, and not for ours only but also for the whole world. [1John 2:1-2]

...Because your sins are forgiven you for His name's sake. [1John 2:12]

Who is a liar but he who denies that Jesus is the Christ? He is antichrist who denies the Father and the Son. Whoever denies the Son does not have the Father either; he who acknowledges the Son has the Father also. [1John 2:22-23]

And this is the promise that He has promised us--eternal life. [1John 2:25]