When we honor Him with our finances, by returning the tithe (the tenth) and the giving of offerings, His Kingdom can be advanced. Collective generosity is God's plan to accomplish things we could never do individually.

6 Now I say this: the one who sows sparingly will also reap sparingly, and the one who sows generously will also reap generously. 7 Each one must do just as he has decided in his heart, not reluctantly or under compulsion, for God loves a cheerful giver.
2 Corinthians 9:6-7