The Growing Seed

Mark 4:26-29
[4:26] And he said, So is the kingdom of God, as if a man should cast seed into the ground; [27] And should sleep, and rise night and day, and the seed should spring and grow up, he knoweth not how. [28] For the earth bringeth forth fruit of herself; first the blade, then the ear, after that the full corn in the ear. [29] But when the fruit is brought forth, immediately he putteth in the sickle, because the harvest is come.