12 The next day a great multitude that had come to the feast, when they heard that Jesus was coming to Jerusalem, 13 took branches of palm trees and went out to meet Him, and cried out: "Hosanna! 'Blessed is He who comes in the name of the Lord!' The King of Israel!" 14 Then Jesus, when He had found a young donkey, sat on it; as it is written: 15 "Fear not, daughter of Zion; Behold, your King is coming, Sitting on a donkey's colt." 16 His disciples did not understand these things at first; but when Jesus was glorified, then they remembered that these things were written about Him and that they had done these things to Him.
Matthew Henry's Commentary on John 12:12-16
Commentary on John 12:12-19
(Read John 12:12-19)
Christ's riding in triumph to Jerusalem is recorded by all the evangelists. Many excellent things, both in the word and providence of God, disciples do not understand at their first acquaintance with the things of God. The right understanding of spiritual nature of Christ's kingdom, prevents our misapplying the Scriptures which speak of it.