5:10 God of all grace. Despite any sufferings we experience as Christians (I Peter 4:16), our God is the “God of all grace,” and “He giveth more grace” (James 4:6) as needed. He is also “the God of all comfort” (II Corinthians 1:3), as well as “the God of peace” (Hebrews 13:20) and “the God of hope” (Romans 15:13).
5:10 suffered a while. A dominant theme of Peter’s first epistle is grace and strength while suffering for Christ’s sake. This is his final and summarizing reference to this subject, but note also I Peter 1:6-7; 2:19-21; 3:14-17; 4:12-19, as he returns again and again, in each of his five chapters, to this vital theme.