14 The blind and the lame came to him in the Temple, and he healed them. 15 The leading priests and the teachers of religious law saw these wonderful miracles and heard even the children in the Temple shouting, "Praise God for the Son of David." But the leaders were indignant. 16 They asked Jesus, "Do you hear what these children are saying?" "Yes," Jesus replied. "Haven't you ever read the Scriptures? For they say, 'You have taught children and infants to give you praise.' "
Matthew Henry's Commentary on Matthew 21:14-16
Commentary on Matthew 21:12-17
(Read Matthew 21:12-17)
Christ found some of the courts of the temple turned into a market for cattle and things used in the sacrifices, and partly occupied by the money-changers. Our Lord drove them from the place, as he had done at his entering upon his ministry, John 2:13-17. His works testified of him more than the hosannas; and his healing in the temple was the fulfilling the promise, that the glory of the latter house should be greater than the glory of the former. If Christ came now into many parts of his visible church, how many secret evils he would discover and cleanse! And how many things daily practised under the cloak of religion, would he show to be more suitable to a den of thieves than to a house of prayer!