The bible said we have different level of faith. Those with little faith, even some without any faith at all, require to see before they believe. Sight is a very powerful thing, seeing is the evident of what you heard or spoken by someone.

In yesterday's case, the Samaritans said to the woman, we did not believe because of what you told us, but we have heard for ourselves. This is after they have seen Jesus and heard from Him they believed what the woman told them.

seeing brings the reality to what one hears. Not all have faith as Mary, Noah, Abraham. Even after all the miracles of Jesus,. those who ate and slept, with Him doubted Him. Even His own blood brothers doubted Him, how much more those who havent seen Him before.