Matteo 9:27

Further Miracles of That Day. And when Jesus departed thence, two blind men followed Him, crying and saying, Thou son of David, have mercy on us.

There was no respite for the Lord since His power over diseases was now generally known. Waiting at the door were two unfortunates with an affliction very common in the East, especially in Egypt, Palestine, and Arabia. They were blind from disease. The stories they had heard of the healing power of Jesus and the words which they had had occasion to listen to from His own mouth, had given them the conviction that this man must be the promised Messiah.

For while they followed after Him, they cried loudly, calling Him the Son of David, and beseeching Him for help. Note: The opinion was generally held in Judea at that time, that the Messiah should be the Son of David, John 7:42. Jesus was openly acknowledged as coming from this family. Matthew 12:23; Matthew 15:22; Matthew 20:30-31; Matthew 21:9-15; Matthew 22:41-45.

The fact that these blind men thus publicly invoked Him amounted to a distinct profession of the Messiahship of Jesus. For that reason also the pleading cry: Have mercy on us! No grumbling against fate, no demanding of a just alleviation of an unmerited punishment; only mercy they beg.