Mark 4:26-29

26And He said, “The kingdom of God is as if a man should scatter seed on the ground,

27and should sleep by night and rise by day, and the seed should sprout and grow, he himself does not know how.

28For the earth yields crops by itself: first the blade, then the head, after that the full grain in the head.

29But when the grain ripens, immediately he puts in the sickle, because the harvest has come.”