Unless you mean the book of Mark and perhaps the 'Parable of the Growing Seed' is what you had in mind for us to read.
He said, "The Kingdom of
God is as if a man should cast seed on the earth, and should sleep and rise night and day, and the seed should spring up and grow, he doesn't know how. For the earth bears fruit: first the blade, then the ear, then the full grain in the ear. But when the fruit is ripe, immediately he puts forth the sickle, because the harvest has come."
— Mark 4:26-29
Click on the link, and would 'the harvest' referred to be Phase 2?