Jamieson, Fausset & Brown, on Jas 4:8

“Draw nigh to God, and he will draw nigh to you. Cleanse your hands, ye sinners: and purify your hearts, ye double minded.”

“Draw nigh to God--So "cleave unto Him," Deu 30:20, namely, by prayerfully (Jam 4:2-3) "resisting Satan," who would oppose our access to God. he will draw nigh--propitious. Cleanse . . . hands--the outward instruments of action. None but the clean-handed can ascend into the hill of the Lord (justified through Christ, who alone was perfectly so, and as such "ascended" thither). purify . . . hearts--literally "make chaste" of your spiritual adultery (Jam 4:4, that is, worldliness) "your hearts": the inward source of all impurity. double-minded--divided between God and the world. The "double-minded" is at fault in heart; the sinner in his hands likewise.”

Imported from an open dataset — not yet checked against the printed edition.