Matthew 9:27-30 KJV

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.