Easton's Bible Dictionary: M. G. Easton, M.A., D.D.

Host of heaven

The sun, moon, and stars are so designated (Gen. 2:1). When the Jews fell into idolatry they worshipped these (Dt. 4:19; 2 Ki. 17:16, 21:3, 5, 23:5; Jer. 19:13; Zeph. 1:5; Acts 7:42).