1. Sin is the transgression of the law — 1 John 3:4

   KJV 4 Whosoever committeth sin transgresseth also the law: for sin is the transgression of the law.

   WEB 4 Everyone who sins also commits lawlessness. Sin is lawlessness.

   
   
2. Sin is of the devil — 1 John 3:8

   KJV 8 He that committeth sin is of the devil; for the devil sinneth from the beginning. For this purpose the Son of God was manifested, that he might destroy the works of the devil.

   WEB 8 He who sins is of the devil, for the devil has been sinning from the beginning. To this end the Son of God was revealed: that he might destroy the works of the devil.

   John 8:44

   KJV 44 Ye are of your father the devil, and the lusts of your father ye will do. He was a murderer from the beginning, and abode not in the truth, because there is no truth in him. When he speaketh a lie, he speaketh of his own: for he is a liar, and the father of it.

   WEB 44 You are of your father, the devil, and you want to do the desires of your father. He was a murderer from the beginning, and doesn’t stand in the truth, because there is no truth in him. When he speaks a lie, he speaks on his own; for he is a liar, and the father of lies.

   
   
3. All unrighteousness is sin — 1 John 5:17

   KJV 17 All unrighteousness is sin: and there is a sin not unto death.

   WEB 17 All unrighteousness is sin, and there is a sin not leading to death.

   
   
4. Omission of what we know to be good is sin — James 4:17

   KJV 17 Therefore to him that knoweth to do good, and doeth it not, to him it is sin.

   WEB 17 To him therefore who knows to do good, and doesn’t do it, to him it is sin.

   
   
5. Whatever is not of faith is sin — Romans 14:23

   KJV 23 And he that doubteth is damned if he eat, because he eateth not of faith: for whatsoever is not of faith is sin.

   WEB 23 But he who doubts is condemned if he eats, because it isn’t of faith; and whatever is not of faith is sin.

   
   
6. The thought of foolishness is sin — Proverbs 24:9

   KJV 9 The thought of foolishness is sin: and the scorner is an abomination to men.

   WEB 9 The schemes of folly are sin. The mocker is detested by men.

   
   
7. All the imaginations of the unrenewed heart are sin — Genesis 6:5

   KJV 5 And God saw that the wickedness of man was great in the earth, and that every imagination of the thoughts of his heart was only evil continually.

   WEB 5 Yahweh saw that the wickedness of man was great in the earth, and that every imagination of the thoughts of man’s heart was continually only evil.

   Genesis 8:21

   KJV 21 And the Lord smelled a sweet savour; and the Lord said in his heart, I will not again curse the ground any more for man's sake; for the imagination of man's heart is evil from his youth; neither will I again smite any more every thing living, as I have done.

   WEB 21 Yahweh smelled the pleasant aroma. Yahweh said in his heart, “I will not again curse the ground any more for man’s sake because the imagination of man’s heart is evil from his youth. I will never again strike every living thing, as I have done.