Jesus wept after He came into Jerusalem on that ass, while the people sang that Psalm that prophesized the Messiah. The people did not know He had come and then their eyes were blinded.
Luk 19:37 And when he was come nigh, even now at the descent of the mount of Olives, the whole multitude of the disciples began to rejoice and praise God with a loud voice for all the mighty works that they had seen;
Luk 19:38 Saying, Blessed be the King that cometh in the name of the Lord: peace in heaven, and glory in the highest.
Luk 19:39 And some of the Pharisees from among the multitude said unto him, Master, rebuke thy disciples.
Luk 19:40 And he answered and said unto them, I tell you that, if these should hold their peace, the stones would immediately cry out.
Luk 19:41 And when he was come near, he beheld the city, and wept over it,
Luk 19:42 Saying, If thou hadst known, even thou, at least in this thy day, the things which belong unto thy peace! but now they are hid from thine eyes.