God's work is you.

You say that you would do twice, ten times, a hundred times, more than you did. But if you did ten thousand times ten thousand more than all men have done, what would that have been in the work of God? A mere nothing! God's work, like Himself, is infinite. God's work is you. Come to him, and be not a laborer but a son, and you will become a partner of the infinite God and of his world. In God's sight there is neither small nor great, there is only what is straight and what is crooked. Enter into the straight path of life and you will be with God and your work will be neither small nor great, it will be God's work. Remember that in heaven there is more joy over one sinner than over a hundred just persons. The world's work--all that you have neglected to do--has only shown you your sin, and you have repented. And when you repented you found the straight path. Go forward and follow it, and do not think of the past nor of what is great or small. All men are equal in God's sight! There is one God and one life!

--Old man, Walk in the Light While There is Light by Leo Tolstoy