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2:12 if we endure. This refers to perseverance in the face of hardship (v. 10).
we will also reign with him. A New Testament image for the eternal glory that Christians receive through Christ (Matt. 19:28; Rom. 5:17; Rev. 3:21; 5:10; 20:4, 6; 22:5).
if we deny him, he also will deny us. A sober warning against apostasy (Matt. 10:33).