1 Peter 4:19
19 Therefore, those also who suffer according to the will of God shall entrust their souls to a faithful Creator in doing what is right.
The Christian, in his suffering, either by persecutors or by God’s just judgment, should always continue to do what is right, trusting God for their eternal soul.
1 Peter 4:15-16
15 Make sure that none of you suffers as a murderer, or thief, or evildoer, or a troublesome meddler; 16 but if anyone suffers as a Christian, he is not to be ashamed, but is to glorify God in this name.
Peter mentions previously suffering for sins (2:20 and 3:17); and for that we should feel ashamed. But if we suffer as a Christian (by persecution) we should never feel ashamed; rather, we should rejoice, and praise God because of the privilege of suffering with Christ. Also, as Jesus said (in Matthew 5:11-12), we should be glad for the reward we will receive in heaven.
Stephen Nielsen 