Church Fathers on Luke 19:38

As long as our Lord was in the mount His Apostles only were with Him, but when He began to be near the descent, then there came to Him a multitude of the people.

He calls by the name of disciples not only the twelve, or the seventy-two, but all who followed Christ, whether for the sake of the miracles, or from a certain charm in His teaching, and to them may be added the children, as the other Evangelists relate. Hence it follows, For all the mighty works which they had seen.

They beheld indeed many of our Lord’s miracles, but marveled most at the resurrection of Lazarus. For as John says, For this cause the people also met him, for that they heard that he had done this miracle. For it must be observed that this was not the first time of our Lord’s coming to Jerusalem, but He came often before, as John relates.