(to make holy). To prepare or set apart persons or things to holy use (Ex. 13:2). Believers are “sanctified through the offering of the body of Christ once for all” (Rom. 15:16; 1 Cor. 1:2; Heb. 10:10). In this there is no progress, for it is all God’s work. But believers are to yield themselves as “servants of righteousness unto holiness.” In this there is progress (1 Thess. 5:23).