Jesus, the Answer
Satan's strategy is to separate man from God.

Sin: What is it?
The New Scofield Reference Bible, Authorized King James Version, Edited by C.I. Scofield, D.D., discusses this very very important topic on page 1214, referring to the book of Romans, chapter 3 verse 23.

“The literal meanings of the Hebrew and Greek words variously rendered “sin,” “sinner,” etc. disclose the true nature of sin in its maniforld manifestations. Sin is (1) transgression, an overstepping of the law, the divine boundary between good and evil (Rom. 2:23); (2)iniquity, an act inherently wrong, whether expressly forbidden or not (Rom. 1:21-23); (3) error, a departure from right (Rom.1:18); (4)missing the mark, afailure to meet the divine standard (Rom. 3:23); (5) trepass, the intrusion of self-will nto the sphere of divine authority (Eph. 2:1); (6) lawlessness, or spiritual anarchy (1 Tim. 1:9); and (7) unbelief, or an insult to the divine veracity (Jn. 16:9). Sin (1) originated with Satan (Isa. 14:12-14); (2) entered the world through Adam (Rom. 5:12); (3) was, and is, universal, Christ alone excepted (Rom. 3:23; 1 Pet. 2:22); (4) incurs the penalties of spiritual and physical death (Gen 2:17; 3:19; Ezek 18:4, 20; Rom. 6:23); and (5) has no remedy but in the sacrificial death of Christ (Acts 4:12; Heb. 9:26) availed of by faith (Acts 13:38-39). Sin may be summarized as threefold: (1) an act, the violation of , or wat of obedience to, the revealed will of God; (2) a state, absence of righteousness; and (3) a nature, enmity toward God.