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. God blesses us everyday that we are able to walk this Earth and all He ask for is 10% of our earning's. Blessing His house will will your house 100 times over. Just have faith of a mustard seed.