Season 2 Episode 5 Mr Deity and the Really Cheap Meal.
Good-call by the way, skipping the Manna-Skins. (They go directly to your waistline.)
After you've watched the episode, check out this really simple (yeah right) Wikipedia explanation of the referenced scripture, (and even simpler, on Manna.) Buen provecho!
And don't miss the funny comment from Mr D himself in the previous comment thread.