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 at and helps proclaim the gospel. We want to glorify God with every area of our lives, and that includes what we do with our finances.
2 Corinthians 9: 6-7 (Message)
6-7 Remember: A stingy planter gets a stingy crop; a lavish planter gets a lavish crop. I want each of you to take plenty of time to think it over, and make up your own mind what you will give. That will protect you against sob stories and arm-twisting. God loves it when the giver delights in the giving.
Ultimately we believe all of us have been blessed so we in turn can be a blessing to others.
This encompasses every area of our life - Time, Talent, & Treasure.