God and sin don't mix, and satan knows that so he tries to squelch the truth. A new man/woman with a new spirit is God's requirement.
Colossians 3
[4] When Christ, who is our life, shall appear, then shall ye also appear with him in glory.[5] Mortify therefore your members which are upon the earth; fornication, uncleanness, inordinate affection, evil concupiscence, and covetousness, which is idolatry:[6] For which things' sake the wrath of God cometh on the children of disobedience:[7] In the which ye also walked some time, when ye lived in them.[8] But now ye also put off all these; anger, wrath, malice, blasphemy, filthy communication out of your mouth.[9] Lie not one to another, seeing that ye have put off the old man with his deeds;[10] And have put on the new man, which is renewed in knowledge after the image of him that created him: