In the Garden, God didn't send the rain until there was a man to till the ground. Rain is sent for man. Rain came so that man wouldn't be limited to the garden; he was given dominion over the entire earth.
God is a faithful husbandman and he expects the same of us. Faithfulness is a fruit of the Spirit of God that carries its own reward. Faithfulness is an overcoming quality and a personal standard of integrity that God honors.