God is generous, and so he calls us to be as well. What we do with what God has given us shows the world where our hearts are and helps proclaim the gospel. We want to glorify God in every area of our lives, and that includes what we do with our finances.
Deuteronomy 8:18 NKJV
"And you shall remember the LORD your God, for it is He who gives you power to get wealth, that He may establish His covenant which He swore to your fathers, as it is this day.