What does Matthew 9:28 mean?
Two blind men have followed Jesus to a house, perhaps His own or maybe Matthew's house in Capernaum. They have called out to Him for mercy, addressing Him as the Son of David, the name for the long-promised Messiah (Matthew 9:27). The fact that this was understood by two blind men while being missed by many others is not lost on Jesus.Jesus does not heal the blind men out in the open. Perhaps He is trying to keep the crowds following Him from growing even larger. Perhaps He is not ready for everyone to accept that He is the Messiah who will save Israel. After He has healed them, Jesus will command the men to tell nobody (Matthew 9:30).
When Jesus reaches the house, the blind men follow Him inside and only then does He turn to them. He asks them one question: whether they sincerely believe He has the power to heal. Christ seems to have wanted the blind men to express their faith in Him, personally and directly.
Their answer is firm: they believed He could heal them, both calling Him "Lord." In many of His reported healings, Jesus is drawn to the faith of those seeking to be made well. He wants the seeker to believe He is able to do what they are asking.