What is the meaning of Matthew 9:27-31?

27 And when Jesus departed thence, two blind men followed him, crying, and saying, Thou Son of David, have mercy on us. 28 And when he was come into the house, the blind men came to him: and Jesus saith unto them, Believe ye that I am able to do this? They said unto him, Yea, Lord. 29 Then touched he their eyes, saying, According to your faith be it unto you. 30 And their eyes were opened; and Jesus straitly charged them, saying, See that no man know it. 31 But they, when they were departed, spread abroad his fame in all that country. (Matthew 9:27-31 KJV)

William Burkitt’s Commentary

The ruler, and others who came to Christ for cure and healing, believed him to be a man unto whom Almighty God had communicated divine power.

But it is observable, that these poor blind men did believe him to be the Messiah, by their calling him the Son of David; and according to their faith, so was their success: their faith capacitated them for a cure.

But why did our Lord enjoin the blind men silence, and straitly charge them to tell no man of the cure? Herein the great modesty and humility of Christ appeared, in avoiding all ostentation and commendation; as also a due care of his own safety, lest the publishing of his miracles should create him untimely danger from the Pharisees.