Matthew 9:28
When he entered the house, the blind men came to him, and Jesus said to them, Do you believe that I am able to do this? They said to him, Yes, Lord. The question Jesus asks — do you believe I am able? — is the faith question he presses before healing. The Lord and the Yes communicate the decisive commitment that the question seeks: not the tentativeness of the maybe of verse 21 but the explicit affirmation of capacity. The blind men have already demonstrated faith by following; the question crystallizes the faith into explicit declaration. Hebrews 11:1 says faith is the assurance of things hoped for, the conviction of things not seen — the blind men believe in what they cannot see.