Farming in the world requires the cooperation of four essential elements.
A harvest is gathered into the barn only as a result of the natural action of water, earth, wind and light.
God's farming likewise has four elements - faith, hope, love, and knowledge.
Faith is our earth, that in which we take root.
Hope is the water through which we are nourished.
Love is the wind through which we grow.
Knowledge is the light through which we ripen.
Gospel of Philip 79:18-30 (a Gnostic Christian text of the Valentinian tradition; late 2nd century CE)