“But that He is not pleased with sacrifices, is shown by this, that those who lusted after flesh were slain as soon as they tasted it, and were consigned to a tomb, so that it was called the grave of lusts. 988 He then who at the first was displeased with the slaughtering of animals, not wishing them to be slain, did not ordain sacrifices as desiring them; nor from the beginning did He require them. For neither are sacrifices accomplished without the slaughter of animals, nor can the first-fruits be presented. But how is it possible for Him to abide in darkness, and smoke, and storm (for this also is written), who created a pure heaven, and created the sun to give light to all, and assigned the invariable order of their revolutions to innumerable stars? Thus, O Simon, the handwriting of God—I mean the heaven—shows the counsels of Him who made it to be pure and stable.
That is, Kibroth-Hattaavah; Num. xi. 34.