Rejoice greatly, Daughter Zion!
Shout, Daughter Jerusalem!
See, your king comes to you,
righteous and victorious,
lowly and riding on a donkey,
on a colt, the foal of a donkey.
One answer is that to do so was the fulfillment of prophecy: Zechariah 9:9. The other answer: to show His love for you, for me.
Again, we must decide what we think of this Jesus. Today. This week...
I am trying here to prevent anyone saying the really foolish thing that people often say about Him: I’m ready to accept Jesus as a great moral teacher, but I don’t accept his claim to be God. That is the one thing we must not say. A man who was merely a man and said the sort of things Jesus said would not be a great moral teacher. He would either be a lunatic — on the level with the man who says he is a poached egg — or else he would be the Devil of Hell. You must make your choice. Either this man was, and is, the Son of God, or else a madman or something worse. You can shut him up for a fool, you can spit at him and kill him as a demon or you can fall at his feet and call him Lord and God, but let us not come with any patronising nonsense about his being a great human teacher. He has not left that open to us. He did not intend to. ... Now it seems to me obvious that He was neither a lunatic nor a fiend: and consequently, however strange or terrifying or unlikely it may seem, I have to accept the view that He was and is God. ~C.S.Lewis
This week will give us many times to reflect. If we were time traveling, we could see Jesus riding into Jerusalem today on the colt; tomorrow, we would see Him clearing the temple; by Tuesday, He'll be making an amazing escape from those who wanted to capture Him; Thursday, He is making preparations to celebrate Passover in an Upper Room; He will spend a vile night being abandoned, questioned, beaten, and by Friday. Well, by Friday, we know...
For you, for me.