What is the source of God's doctrine?

God's doctrine originates solely from the Scriptures, which are the only reliable source of truth concerning His character and redemptive plan. The preacher emphasizes that doctrine should not be based on traditions of men, as they are susceptible to change and failure. Instead, it is through the Bible—the inspired Word of God—that believers learn about crucial theological principles including grace, sin, and redemption through Christ. The doctrine presented in the Bible equips believers with the knowledge necessary for living a life pleasing to God and for fulfilling the Great Commission.