Mark 8:20-24

And when the seven among four thousand, how many baskets full of fragments took ye up? And they said, Seven.

And he said unto them, How is it that ye do not understand?

And he cometh to Bethsaida; and they bring a blind man unto him, and besought him to touch him.

And he took the blind man by the hand, and led him out of the town; and when he had spit on his eyes, and put his hands upon him, he asked him if he saw ought.

And he looked up, and said, I see men as trees, walking.