The phrase God is spirit is the classic biblical definition of the nature of God. Despite the heretical teaching of false cults, God is not an exalted man (Num. 23:19), âfor a spirit does not have flesh and bonesâ (Luke 24:39). He is âthe invisible Godâ (Col. 1:15; cf. 1 Tim. 1:17; Heb. 11:27), who âdwells in unapproachable light [cf. Ps. 104:2], whom no man has seen or can seeâ (1 Tim. 6:16; cf. Ex. 33:20; John 1:18; 6:46). Had He not revealed Himself in Scripture and in Jesus Christ, God would be utterly incomprehensible. . . .