How do we know Jesus Christ's authority?

In John 17:2, we see that Jesus has been given authority over all flesh, which includes the ability to give eternal life. This authority is not only about power but also encompasses the liberty of choice, indicating that Christ controls the destinies of humanity according to His will. This sovereign authority assures believers that their salvation rests securely in His hands, as He chooses whom to offer eternal life. Thus, the authority of Jesus is integral to understanding His role as the Savior.