Mark 4:26-29
The Parable of the Seed
26And He was saying, “The kingdom of God is like a man who casts seed upon the soil; 27and he sleeps and rises, night and day, and the seed sprouts and grows—how, he himself does not know. 28“The soil produces crops by itself; first the blade, then the head, then the mature grain in the head. 29“But when the grain 1is ripe, he immediately 2,aputs in the sickle, because the harvest has come.”