Matthew 21:16

Hearest thou what these say? — The priests and scribes had probably remained in the Temple, and had not heard the Hosannas which were raised on the Mount of Olives. The shouts of the children were therefore a surprise to them, and they turned to the Teacher and asked whether He accepted them in the sense in which they were addressed to Him. Had He really entered the Temple claiming to be the expected Christ? Did He approve this interruption of the order and quiet of its courts?

Have ye never read? — Better, did ye never read? The question was one which our Lord frequently asked in reasoning with the scribes who opposed Him (Matthew 12:3; Matthew 12:5; Matthew 19:4; Matthew 21:42; Matthew 22:31). It expressed very forcibly the estimate which He formed of their character as interpreters. They spent their lives in the study of the Law, and yet they perverted its meaning, and could not see its bearing on the events that passed around them. In this instance He cites the words of Psalms 8:2, the primary meaning of which appears to be that the child’s wonder at the marvels of Creation is the truest worship. As applied by our Lord their lesson was the same. The cries of the children were the utterance of a truth which the priests and scribes rejected. To Him, to whom the innocent brightness of childhood was a delight, they were more acceptable than the half-hearted, self-seeking homage of older worshippers. The words are quoted from the LXX. translation.