Isaiah 28:24-26

Doth he that ploweth to sow plow continually? doth he continually open and harrow his ground? When he hath levelled the face thereof, doth he not cast abroad the fitches, and scatter the cummin, and put in the wheat in rows, and the barley in the appointed place, and the spelt in the border thereof? For his God doth instruct him aright, and doth teach him.