How do we know God is the only true God?

The assertion of God's uniqueness and supremacy is profound in Psalm 82. In this psalm, God declares Himself as the ultimate Elohim, judging among the false gods that exist only in human imagination. The psalmist contrasts the divine nature of God with the impotence of human-made idols, affirming that only the one true God is sovereign over all creation (Psalm 115:2-5). He operates in the heavens according to His will, not constrained by human expectations. This understanding is deepened through theological reflection on God's attributes, such as His omniscience, omnipotence, and immutability, leading us to conclude that no other being can claim divinity or authority like God does.