Commentaries:
Robertson's Word Pictures (NT)
The king cometh (o erxomenos, o basileuv). The Messianic hopes of the people were now all ablaze with expectation of immediate realization. A year ago in Galilee he had frustrated their plans for a revolutionary movement "to take him by force to make him king" (John 6:15). The phrase "the coming king" like "the coming prophet" (John 6:14; Deuteronomy 18:15) expressed the hope of the long-looked-for Messiah. They are singing from the Hallel in their joy that Jesus at last is making public proclamation of his Messiahship.
Peace in heaven, and glory in the highest (en ouranw eirhnh kai doca en uyistoiv). This language reminds one strongly of the song of the angels at the birth of Jesus (Luke 2:14). Mark 11:10; Matthew 21:9 have "Hosannah in the highest."
Other Robertson's Word Pictures (NT) entries containing Luke 19:38:
Matthew 11:3
John 12:13
John 19:12
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