'Three Days and Three Nights' in the Bible

and give to him a piece of a bunch of dried figs, and two bunches of raisins, and he eateth, and his spirit returneth unto him, for he hath not eaten bread nor drunk water three days and three nights.

And Jehovah appointeth a great fish to swallow up Jonah, and Jonah is in the bowels of the fish three days and three nights.

for, as Jonah was in the belly of the fish three days and three nights, so shall the Son of Man be in the heart of the earth three days and three nights.