Remember He did not come to Jerusalem to be made King but to die!
Jesus predicts his suffering and death:
Then He took the twelve aside and said to them, “Behold, we are going up to Jerusalem, and all things which are written through the prophets about the Son of Man will be accomplished. 'For He will be handed over to the Gentiles, and will be mocked and mistreated and spit upon, and after they have scourged Him, they will kill Him; and the third day He will rise again.'”--Luke 18:31-33
Q. Why does death exist?
A. The Fall
In the Garden of Eden, God commanded Adam, from the tree of the knowledge of good and evil you shall not eat, for in the day that you eat from it, you shall surely die.--Genesis 2:17