“Forasmuch then as Christ hath suffered for us in the flesh, arm yourselves likewise with the same mind: for he that hath suffered in the flesh hath ceased from sin;”
King James Version (KJV)
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.
1Pe 4:1 Counsels to Suffering Saints SUMMARY OF I PETER 4: Christ Having Died for Us. We Should Live for Christ. Watchfulness in View of the Speedy End. The Trials of the Saints. Sufferings as Christians. Arm yourselves likewise. The saints must be equipped for warfare and suffering. With the same mind. The mind that was in Christ when he suffered, a willingness to suffer to do the will of God. For he that hath suffered in the flesh hath ceased from sin. The idea seems to be that of Ro 6:7. Suffering with Christ puts an end to (or ceases) our connection with sin.