He was on his way to meet a grisly end and the hands (er, the paws) of hungry lions. There was no mystery about how or when death would come. It would come in an arena filled with blood-lusting hordes gathered to witness the macabre spectacle of Roman execution.
God's blessings never satisfy selfish desires. Our egos (the center of our selfish desires) are gluttons for human recognition and worldly goods... but they are starved by God's grace. To be a disciple of Christ is lifelong lesson in humility and selflessness.