Everyone who has this hope set on him purifies himself, even as he is pure.
Now, I pointed out in chapter 1 that the sins (plural) refer to the fruit, and sin (singular) refers to the nature of sin in us, here in I John. So the sin (singular) here, as far as Christ is concerned, "in Him is no sin," that is, there was no nature of sin. We have a sinful nature. If I try to deny that, I'm only deceiving myself, and the truth isn't in me. If I say I have no sin, that I don't have a sinful nature, then I'm only deceiving myself. If I say that my sinful nature has never borne any fruit, that I've never sinned, then I do even worse; I make God a liar now. But Jesus did not have a sinful nature. He was born of God, conceived of the Holy Spirit. He died, as Peter said, as a lamb without spot or blemish. Spot, an inherent defect, He didn't have an inherent defect. Nor were there any acquired, the blemishes. I have both; I have spots and blemishes. I have the inherent sin, the nature of sin, and it has produced too much fruit. So, thank God for the blood of Jesus Christ. Having confessed my sins, He is faithful and just to forgive me and to cleanse me from all unrighteousness. So, whosoever is practicing sin is transgressing the law, for sin is the transgression of the law, and you know that He was manifested to take away our sins. He came in order that He might die for my sins, that He might take away my sins and my guilt, and in Him is no sin nature.