Verse four emphasizes taking the opportunity to work the works of God while
it is time. "We must work the works of the one who sent me . . ."
I would think that vs 3 then would not teach that God caused this to happen
so that Jesus could come along and heal, but that the man's blindness
results into an apportunity to do God's work.
Perhaps I see it that way because that's the way I want it to be.
Carlton L. Winbery
Prof. NT & Greek La College