The declaration that the LORD alone is God is a central tenet of biblical theology, emphasizing the monotheistic foundation of the Judeo-Christian faith. This concept is woven throughout the Scriptures, affirming the uniqueness, sovereignty, and supremacy of the LORD over all creation.

Old Testament Foundations

The Shema, found in Deuteronomy 6:4, is a foundational statement of this belief: "Hear, O Israel: The LORD our God, the LORD is One." This proclamation not only affirms the oneness of God but also calls the people of Israel to exclusive devotion to Him. The LORD's uniqueness is further emphasized in Isaiah 45:5-6, where God declares, "I am the LORD, and there is no other; there is no God but Me. I will equip you, though you have not known Me, so that all may know from the rising to the setting of the sun that there is no one but Me. I am the LORD, and there is no other."

Throughout the Old Testament, the LORD's supremacy is demonstrated through His acts of creation, providence, and redemption. In Genesis 1, God is depicted as the sole Creator of the universe, speaking all things into existence. The narrative of the Exodus further illustrates His power and authority, as He delivers Israel from Egyptian bondage, displaying His might over the so-called gods of Egypt (Exodus 12:12).

Prophetic Affirmations

The prophets consistently reaffirm the LORD's exclusive divinity. In Jeremiah 10:10, the prophet declares, "But the LORD is the true God; He is the living God and eternal King. The earth quakes at His wrath, and the nations cannot endure His indignation." This passage underscores the LORD's living and active presence in the world, contrasting Him with the lifeless idols worshiped by the nations.

The book of Isaiah contains numerous affirmations of the LORD's singular deity. Isaiah 44:6 states, "This is what the LORD says—He who is the King of Israel and its Redeemer, the LORD of Hosts: 'I am the first and I am the last, and there is no God but Me.'" Such declarations serve to remind Israel of their covenant relationship with the one true God and to call them away from idolatry.

New Testament Continuation

The New Testament continues to affirm the LORD's exclusive divinity, now revealed in the person of Jesus Christ. In John 17:3, Jesus prays, "Now this is eternal life: that they may know You, the only true God, and Jesus Christ, whom You have sent." Here, the oneness of God is maintained, while also introducing the mystery of the Trinity.

The apostle Paul echoes this monotheistic belief in 1 Corinthians 8:4-6: "We know that an idol is nothing at all in the world, and that there is no God but one. For even if there are so-called gods, whether in heaven or on earth (as indeed there are many 'gods' and many 'lords'), yet for us there is but one God, the Father, from whom all things came and for whom we exist. And there is but one Lord, Jesus Christ, through whom all things came and through whom we exist."

Theological Implications

The assertion that the LORD alone is God carries profound theological implications. It demands exclusive worship and allegiance, as seen in the first commandment: "You shall have no other gods before Me" (Exodus 20:3). This exclusivity is not merely a matter of religious preference but a recognition of the LORD's rightful place as the Creator and Sustainer of all.

Moreover, the LORD's unique deity assures believers of His ultimate authority and faithfulness. In a world filled with competing claims to power and truth, the biblical affirmation that the LORD alone is God provides a firm foundation for faith and life.