Walking on the Lake

A rabbi, a minister, and a Wiccan priestess decided to go on a fishing trip together. They went down to their local lake, rented a boat, and went out on to the lake for a day of fishing.
As the afternoon approached, the trio got hungry—and realized that they left their lunches on the shore of the lake.
The minister got out of the boat, walked across the lake, got his lunch, walked back, and sat down to eat his lunch.
“You should have gotten all of our lunches!” scolded the priestess. She then got up, walked across the lake, picked up her lunch as well as the rabbi’s, walked back across the lake, and sat down, handing the rabbi his afternoon meal.
The rabbi at this point is almost out of his mind, his eyes wide with shock. He manages to sputter, “Wha… what… how did you…?”
“It’s the power of our faith,” replied the minister.
The rabbi decided he would summon all his faith and try to walk on the lake too. While he was taking his shoes off, the priestess looked at the minister and asked, “Aren’t you going to tell him about the rock?”
“That would be nice, wouldn’t it… but it’s more fun to see him try first.”