Two Signs of God; Do you Believe or not?

When God reveals Himself to us, as He did in the story of the healing of the man born blind in the Gospel of John, He allows us to use our free will to believe Him or not to believe Him. Then it is up to us to put that belief into action. Some “say” they believe, as the ancient Jews, but don’t follow that with action. When we see God revealed, will we believe and act?