It works though, yeah?
Why is it so humorous?
Sure it works.
It just conjours up all kinds of funny images to me.
God: "And I say unto thee, Bob, that on the morrow ye shall certainly jump into the lake over there."
Bob; "Uhh.. Don't think so God. I'm visiting my in-laws in Kansas city. The wife and I are leaving tonight"
God: "We'll see." grins in a very un-godlike way.
next day. Bob is mowing his Mother-in-law's back yard when suddenly a chuffing great lake appears in front of him and the deck chair in which his wife had been sitting is now quickly sinking in the water.
Bob immediately jumps in to save his wife.
God: (from behind a passing cloud) "Gotcha!!!"
Bob: "Damn it God. That's cheating."