4:13 But rejoice. The same paradox of exultation in suffering is found in 1:6, 7.

share Christ’s sufferings. Christians share in Christ’s sufferings, not by contributing to Christ’s finished work of atonement for sin, but by experiencing similar mistreatment because they are identified and united with Christ (vv. 14, 16; Rom. 8:17; 2 Cor. 1:5 and note; Phil. 1:29; Col. 1:24 and note).