The sermon centers on the biblical and confessional truth that God is knowable because He has condescended to reveal Himself through both general revelation—evident in creation, preservation, and government of the universe—and special revelation, uniquely disclosed in His holy Word and supremely in Jesus Christ. It emphasizes that human reason, corrupted by sin, cannot arrive at saving knowledge of God apart from divine revelation, rejecting both deism and pantheism as inadequate and unbiblical. The psalmist's declaration that 'by the word of the Lord the heavens were made' underscores God's active, sovereign speech in sustaining all things, while the Belgic Confession affirms that God speaks clearly for His glory and the salvation of His people. The sermon calls believers to receive Scripture not as self-help or human wisdom, but as the living, authoritative Word of God, through which the Holy Spirit leads us to Christ, the full and final revelation of God's nature and grace.