Justin Whitmel Earley:

So what are bodies for? When we stop ignoring or idolizing bodies, their telos or purpose comes into view: to love. We’re God’s image-bearers, and “God is love” (1 John 4:8). The great commandment is to love God and love neighbor (Matt. 22:37–39). Health and longevity aren’t ends in themselves. They’re means to an end: to glorify and enjoy God by loving him and others. Our call is not to optimize health for its own sake. Our call is rather an echo of the Christian wedding vows: to love, in sickness and in health. Knowing this truth frees us from the slavery of always needing to get everything right, obsessing over our fitness and body image.