The document discusses the church's identity as being one in doctrine and unity. It outlines four things God calls the church to do: belong, grow, serve, and share. It emphasizes that true unity is motivated by grace, Christ-likeness, trust and love, not uniformity which is driven by fear and control. True unity involves being one in doctrine, believing the scriptures are God-breathed, and one in function as the body of Christ with different parts working together.