The measurable worth or value bestowed on an identity is determined by what that identity saves us from:
Devote your lives to knowing Christ. “For his sake I count the loss of all things and count them as rubbish, in order that I may gain Christ and be found in him”
Devote your lives to imitating Christ. “that I may know him and the power of his resurrection, and may share in his sufferings, becoming like him in his death, that by any means possible I may attain the resurrection of the dead.
Jesus Christ is the only valuable, unchanging, and eternal identity that guarantees salvation from sin and death.