“And the multitudes that went before, and that followed, cried, saying, Hosanna to the Son of David: Blessed is he that cometh in the name of the Lord; Hosanna in the highest.”
King James Version (KJV)
21:9 The multitudes cried, saying - Probably from a Divine impulse; for certainly most of them understood not the words they uttered. Hosanna - (Lord save us) was a solemn word in frequent use among the Jews. The meaning is, We sing hosanna to the Son of David. Blessed is he, the Messiah, of the Lord. Save. Thou that art in the highest heavens. Our Lord restrained all public tokens of honour from the people till now, lest the envy of his enemies should interrupt his preaching before the time . But this reason now ceasing, he suffered their acclamations, that they might be a public testimony against their wickedness, who in four or five days after cried out, Crucify him, crucify him. The expressions recorded by the other evangelists are somewhat different from these: but all of them were undoubtedly used by some or others of the multitude.
Mt 21:9 Hosanna. A Greek modification of the Hebrew words rendered, "Save now, I beseech thee", in Ps 118:25, the next verse of which formed part of their song, "Blessed", etc. It is used as an expression of praise, like "hallelujah". He that cometh in the name of the Lord. The words are taken in part from Ps 118:25,26, a hymn which belonged to the great hallelujah chanted at the end of the Paschal Supper and the Feast of Tabernacles. The people were accustomed to apply it to the Messiah.