Jesus destroyed the devil
Note how Hebrews 2:14 says the “power of death” belongs to “the devil”. (1) (1 John 3:8) says the Son of God (Jesus) appeared for the reason of destroying the works of the devil. Who or what is the devil then?
Therefore sin and devil are words that refer to the same concept.
“The devil” is a figure of speech that represents a sinful way of thinking. In Greek, the word for devil is “diabolos” and literally means a “false accuser” or “slanderer”. The first humans, Adam and Eve, disobeyed God and sinned—they gave in to this sinful way of thinking.
Recall the serpent was the first to use this sinful way of thinking; the serpent was the original “false accuser” since he denied God’s words that death would follow from sin. The consequence of sin was death. Adam and Eve, and all humans since them, have died or will die.
Sin, when used as a verb in the Bible, is the transgression, or breaking, of God’s commandments (1) (John 3:4).