²⁷ The seed comes up and grows night and day. It doesn’t matter whether the man is asleep or awake; the seed still grows. The man does not know how it grows. ²⁸ Without any help, the earth produces grain. First the plant grows, then the head, and then all the grain in the head. ²⁹ When the grain is ready, the man cuts it. This is the harvest time.”