Christ is not an accessory or merely the “add-ons” to our identity, as if one were choosing options for a new car. He transforms and has the power to take over one’s broken, wounded, and flawed identity so that everything else becomes supplemental or an accessory, which is precisely what “Jesus is Lord” means. There is an evident heavy dose of Christology (Christ-centeredness) in which both of the epistles support the point that “the life of Jesus and the life of the believer are inseparable. In Peter’s narrowed way of thinking, believing, and living, Jesus is everything not merely something.”
Petros; Πέτρος, Week Two