Enoch
ENOCH (ē'nŭk, Heb. hănôkh, consecrated, Gr. Henoch)
ENOCH e’ nək (חֲנֹ֑וכְ, LXX ̓Ενώχ, meaning not certain; perhaps dedicated one, or one trained up from the root “to train up a youth” [cf. Prov 22:6]). The name of four different individuals in the Old Testament.
1. The son of Cain (Gen 4:17, 18) for whom the first city which Cain built was named.
2. The son of Jared of the godly line of Seth, who walked with God and was translated to heaven without dying (Gen 5:18-24; 1 Chron 1:3). As a hero of faith (Heb 11:5) he is known as a man who pleased God, while Jude 14 and 15 refer to the tradition that Enoch prophesied against ungodly men (cf. The Book of Enoch). There can be no question that the clause “and he was not, for God took him” (Gen 5:24) refers to translation; the same expression is used of Elijah’s translation (2 Kings 2:11).
3. A son of Midian, the son of Abraham by Keturah; this Enoch was father of one of the tribes of Midianites (Gen 25:4; 1 Chron 1:3).
4. The first son of Reuben, the son of Jacob (Gen 46:8, 9; Exod 6:14; Num 26:5; 1 Chron 5:3).
International Standard Bible Encyclopedia (1915)
(chanokh, "initiated"; Henoch):
(1) The eldest son of Cain (Ge 4:17,18).
(2) The son of Jared and father of Methuselah, seventh in descent from Adam in the line of Seth (Jude 1:14). He is said (Ge 5:23) to have lived 365 years, but the brief record of his life is comprised in the words, "Enoch walked with God: and he was not; for God took him" (Ge 5:24). The expression "walked with God" denotes a devout life, lived in close communion with God, while the reference to his end has always been understood, as by the writer of He, to mean, "By faith Enoch was translated that he should not see death; and he was not found, because God translated him" (Heb 11:5).
See further, APOCALYPTIC LITERATURE, sec. II, i, 1.
In Ge 4:17 it is narrated that Cain, who had taken up his abode in the land of Nod, East of Eden (verse 16), built there a city, and called it after the name of his firstborn son Enoch. It is impossible to fix more definitely the locality of this first of cities, recorded, as Delitzsch says (Genesis, in the place cited.), as registering an advance in civilization. The "city" would be a very simple affair, a place of protection for himself, wife and household, perhaps connected with the fear spoken of in Ge 4:14.