In short
Stewardship
We are God's stewards, trusted with time, abilities, possessions and the earth and its resources. We are responsible to Him for using them well. We acknowledge His ownership by faithful service and by returning tithes and giving offerings.
Read it in the Bible
Genesis 1:26-28; 1 Chronicles 29:14; Malachi 3:8-12; Matthew 23:23; 2 Corinthians 8:1-15
This is a short summary. The church's full statements are at adventist.org, and our pastors are glad to study any belief with you.