1 Peter 4:1

The command 'arm yourselves likewise with the same mind' — where Christ's suffering in the flesh is the weapon to be taken up — employs military metaphor to describe christological conformation: the mind that accepted suffering rather than sinful evasion is the believer's primary defensive resource. The theological claim 'he that hath suffered in the flesh hath ceased from sin' has generated interpretive debate: it may mean that the one who has suffered for Christ has demonstrably broken with the old way of life, or that suffering is the context in which sinful self-will is mortified. Either reading maintains the connection between suffering and sanctification that is central to the Petrine letters' pastoral strategy: suffering is not merely endured but is instrumentalized within God's sanctifying purposes. The verse is important for Christian ascetic traditions that have linked bodily difficulty to spiritual formation.