Mark 4:26-29

26 And he said, Such is the kingdom of God, as if a man put seed in the earth,

27 And went to sleep and got up, night and day, and the seed came to growth, though he had no idea how.

28 The earth gives fruit by herself; first the leaf, then the head, then the full grain.

29 But when the grain is ready, he quickly sends men to get it cut, because the time for cutting has come.