God influences the world through his people. He gives to us so He can give through us. The Bible tells us that everything we have is a gift from God (1 Chronicles 29:14). As you give both faithfully and willingly, the world is changed for the glory of God: the gospel is preached, lives are touched, people are fed, bodies are healed, churches are built; and you, in turn, are blessed by God so that you can give again.
This link takes you to the Adventist Online Giving site. You can also search for the Adventist Giving app in your app store.