15彼得写这两封书信（尤其是第一封）的原因是，分散的犹太信徒在受逼迫。他们在经历火炼的试验。彼得将这逼迫比作熔炉的焚烧。因着信徒受困扰，并且可能在疑惑，彼得就写信教导他们，也安慰他们。在彼前五章十节他说，“但那全般恩典的神，就是那曾在基督耶稣里召你们进入祂永远荣耀的，等你们暂受苦难之后，必要亲自成全你们，坚固你们，加强你们，给你们立定根基。”这里彼得似乎在告诉信徒，他们不需要疑惑，因为神在成全他们。正如石头被切割，好适合摆在建筑物里；我们也需要被“切割”，好得着成全、坚固、加强，并立定根基。彼得写信安慰受苦、遭逼迫的圣徒，给他们看见，他们都在神的行政之下。神的行政乃是首先施行在祂自己的儿女身上（彼得前书生命读经，一一至一三页）。
15The reason the two Epistles of Peter were written, especially the first, was that the dispersed Jewish believers were suffering persecution. They were undergoing a fiery trial. Peter compares this persecution to the burning of a furnace. Because the believers were troubled and perhaps doubting, Peter wrote to instruct them and also to comfort them. In 1 Peter 5:10 he says, “The God of all grace, He who has called you into His eternal glory in Christ Jesus, after you have suffered a little while, will Himself perfect, establish, strengthen, and ground you.” Here Peter seems to be telling the believers that there is no need for them to doubt, for God is perfecting them…Peter wrote to comfort the suffering, persecuted saints, showing them that all of them were under God’s government. The exercise of God’s government is first upon His own children. (Life-study of 1 Peter, pp. 9-11)