Indiana Puzzle

As the rain and the snow

come down from heaven

and do not return to it

without watering the earth

and making it bud and flourish 

so that it yields seed for the sower and 

bread for the eater,

so is my word that goes out from my mouth:

It will not return to me empty.

But will accomplish what I desire

and achieve the purpose for which I sent it.

--Isaiah 55:10-II