What does the Bible say about Jesus' authority over all flesh?

In John 17:1-2, we see Jesus praying to the Father, acknowledging that He has been given power over all flesh. This power is not just authority but also the ability to grant eternal life to all whom the Father has given Him. Jesus' role as the Mediator is pivotal as it emphasizes that eternal life is given specifically to those chosen by God, not indiscriminately. This reflects the sovereignty of God's grace, establishing that Christ's mission and the fulfillment of this authority are inherently interwoven with God's eternal purpose, ensuring that none of the chosen will be lost.