The parable of the seed reveals that God is at work in nature. The seed has in itself a germinating principle, a principle that God himself has implanted; yet if left to itself the seed would have no power to spring up. Man has his part to act in promoting the growth of the grain.... MM 7.4
There is life in the seed, there is power in the soil; but unless an infinite power is exercised day and night, the seed will yield no returns. The showers of rain must be sent to give moisture to the thirsty fields, the sun must impart heat, electricity must be conveyed to the buried seed. The life which the Creator has implanted, He alone can call forth. Every seed grows, every plant develops, by the power of God.—Christ’s Object Lessons, 63. MM 7.5