Peter next turned his attention from the believer"s duty to God to the believer"s duty to his or her Christian brethren. He did so to explain further the implications of living joyfully during trials and suffering. He returned to what he set out to do in 1 Peter 1:13, namely, to spell out the implications of Christian faith and hope. However, he continued to reflect on the theological basis of our ethical responsibilities. He would get into practical Christian ethics later. Obedience to the truth produces a sincere love for the brethren ( 1 Peter 1:22-25), repentance from sin ( 1 Peter 2:1), and a desire for spiritual growth ( 1 Peter 2:2). [1][source]