The Evil One is the personal spiritual enemy who leads people into temptation. The designation corresponds to the personal form of evil and is associated with Satan, the adversary or accuser, and the devil.
The Revised Version uses “the evil one” in passages where the King James Version has “evil.” The expression refers to the enemy of humanity, whose work is to lead people into temptation.
The entry observes that many peoples have expressed belief in a personal spirit of darkness opposed to a spirit of light and working against human good.