You see, doing good in dependence on God does just the opposite of paying Him back. All Christian labor for Him is a gift from Him. Good deeds when done as a pure act of His grace do not pay back grace, but borrow more grace from Him. Without God’s grace we would not and could not serve Him. Therefore, even our service does not put Him in debt to us, but rather puts us deeper in debt to His grace. And that is where God wants us to be throughout eternity.