Malaquias 3

8 Will a man insult God? for ye insult me. But ye say, Wherein have we insulted thee? In that the tithes and firstfruits are with you still.

10 The year is completed, and ye have brought all the produce into the storehouses; but there shall be the plunder thereof in its house: return now on this behalf, saith the Lord Almighty, see if I will not open to you the torrents of heaven, and pour out my blessing upon you, until ye are satisfied.