Mark 4:26-29

26He also said, “The kingdom of God is like a man who scatters seed on the ground. 27He sleeps and rises night and day, and the seed sprouts and grows; he does not know how. 28For the earth produces a crop by itself, first the stalk, then the head, then the full grain in the head. 29When the crop is ready, the man immediately sends in the sickle, for the harvest has come.”