The Intrinsic Efficacy of Christ’s Cross Work Necessarily Exclusivistic The Scriptures make it clear that Christ died not a potentially but an actually sacrificial death on the cross (1 Cor. 5:7; Heb. 9:23, 26; 10:24), becoming there both sin (2 Cor. 5:21) and curse (Gal. 3:13) as the substitute for others (περί, peri—Rom. 8:3; Gal. 1:4; 1 Pet. 3:18), as the substitute in behalf of others (ὑπέρ, hyper—Rom. 5:6–8; 8:32; 14:15; Gal. 2:13, 20; 1 Cor. 15:3; 2 Cor. 5:15; Heb. 2:9), as the substitute