1-peter 4:1

As Christ hath suffered - He is your proper pattern; have the same disposition he had; the same forgiving spirit, with meekness, gentleness, and complete self-possession.

He that hath suffered in the flesh, hath ceased from sin - This is a general maxim, if understood literally: The man who suffers generally reflects on his ways, is humbled, fears approaching death, loathes himself because of his past iniquities, and ceases from them; for, in a state of suffering, the mind loses its relish for the sins of the flesh, because they are embittered to him through the apprehension which he has of death and judgment; and, on his application to God's mercy, he is delivered from his sin.

Some suppose the words are to be understood thus: "Those who have firmly resolved, if called to it, to suffer death rather than apostatize from Christianity, have consequently ceased from, or are delivered from, the sin of saving their lives at the expense of their faith." Others think that it is a parallel passage to Romans 6:7, and interpret it thus: "He that hath mortified the flesh, hath ceased from sin." Dr. Bentley applies the whole to our redemption by Christ: He that hath suffered in the flesh hath died for our sins. But this seems a very constrained sense.

Forasmuch then as Christ hath suffered for us in the flesh - Since he as a man has died for us. See the notes at 1 Peter 3:18. The design was to set the suffering Redeemer before them as an example in their trials.

Arm yourselves likewise with the same mind - That is, evidently, the same mind that he evinced - a readiness to suffer in the cause of religion, a readiness to die as he had done. This readiness to suffer and die, the apostle speaks of as armour, and having this is represented as being armed. Armour is put on for offensive or defensive purposes in war; and the idea of the apostle here is, that that state of mind when we are ready to meet with persecution and trial, and when we are ready to die, will answer the purpose of armour in engaging in the conflicts and strifes which pertain to us as Christians, and especially in meeting with persecutions and trials. We are to put on the same fortitude which the Lord Jesus had, and this will be the best defense against our foes, and the best security of victory.

For he that hath suffered in the flesh hath ceased from sin - Compare the notes at Romans 6:7. To "suffer in the flesh" is to die. The expression here has a proverbial aspect, and seems to have meant something like this: "when a man is dead, he will sin no more;" referring of course to the present life. So if a Christian becomes dead in a moral sense - dead to this world, dead by being crucified with Christ (see the notes at Galatians 2:20) - he may be expected to cease from sin. The reasoning is based on the idea that there is such a union between Christ and the believer that his death on the cross secured the death of the believer to the world. Compare 2 Timothy 2:11; Colossians 2:20; Colossians 3:3.

4:1 Arm yourselves with the same mind - Which will be armour of proof against all your enemies. For he that hath suffered in the flesh - That hath so suffered as to he thereby made inwardly and truly conformable to the sufferings of Christ.Hath ceased from sin - Is delivered from it.