Although these subjects are debated with keen reasoning, the result is no real contribution. For what need is there of setting up a twofold knowledge? Nor does it serve any useful purpose to make Moses at the outset so mystical and allegorical. His purpose is to teach us, not about allegorical creatures and an allegorical world but about real creatures and a visible world apprehended by the senses. Therefore, as the proverb has it, he calls “a spade a spade,” 10 i.e., he employs the terms “day”