Luke 16
generosity: Learing how to manage the resources God has given us.
General Revelation: part of what God has given us is Creation and a Conscience. Romans 1:20-21 teaches because God has revealed himself thru this beautiful earth and because we have the law written on our hearts, AKA our conscience, we all are responsible for who God is in our lives. He is a generous God who has revealed himself to everyone.
It is up to us to be good managers and give what God deserves in our lives, including our time and our money. This basically breaks down to being generous with others including our spouses, the poor, and the shrewd worldly people.