18:35-43 This poor blind man sat by the wayside, begging. He was not only blind, but poor, the fitter emblem of the world of mankind which Christ came to heal and save. The prayer of faith, guided by Christ's encouraging promises, and grounded on them, shall not be in vain. The grace of Christ ought to be thankfully acknowledged, to the glory of God. It is for the glory of God if we follow Jesus, as those will do whose eyes are opened. We must praise God for his mercies to others, as well as for mercies to ourselves. Would we rightly understand these things, we must come to Christ, like the blind man, earnestly beseeching him to open our eyes, and to show us clearly the excellence of his precepts, and the value of his salvation.See this passage explained in the notes at Matthew 20:29-34. Lu 18:35-43. Blind Man Healed.

In Mt 20:29-34, they are two, as in the case of the Demoniac of Gadara. In Matthew and Mark (Mr 10:46-52) the occurrence is connected with Christ's departure from Jericho; in Luke with His approach to it. Many ways of accounting for these slight divergences of detail have been proposed. Perhaps, if we knew all the facts, we should see no difficulty; but that we have been left so far in the dark shows that the thing is of no moment any way. One thing is plain, there could have been no collusion among the authors of these Gospels, else they would have taken care to remove these "spots on the sun."

See Poole on "Luke 18:36"

And they told him, that Jesus of Nazareth passeth by. Some of the company answered him, that Jesus, the prophet of Nazareth, so much talked of, and said to be the Messiah, who was become so famous for his doctrines and miracles, for healing diseases, and dispossessing devils, was just "then" passing by; and this occasioned the noise and clamour. And they told him, that Jesus of Nazareth passeth by.