Psalm 18:31

For who is God besides the LORD? And who is the Rock except our God?

For who is God besides the LORD? 
Deuteronomy 4:35  You were shown these things so that you might know that the LORD is God; besides him there is no other.
Deuteronomy 32:39  "See now that I myself am he! There is no god besides me. I put to death and I bring to life, I have wounded and I will heal, and no one can deliver out of my hand."
Psalm 35:10  My whole being will exclaim, "Who is like you, LORD? You rescue the poor from those too strong for them, the poor and needy from those who rob them."
Psalm 86:8  Among the gods, there is none like you, Lord; no deeds can compare with yours.
Psalm 89:6  For who in the skies above can compare with the LORD? Who is like the LORD among the heavenly beings?
Isaiah 44:6  "This is what the LORD says--Israel's King and Redeemer, the LORD Almighty: I am the first and I am the last; apart from me there is no God."
Isaiah 44:8  "Do not tremble, do not be afraid. Did I not proclaim this and foretell it long ago? You are my witnesses. Is there any God besides me? No, there is no other Rock; I know not one."
Isaiah 45:5-6  "I am the LORD, and there is no other; apart from me there is no God. I will strengthen you (Cyrus), though you have not acknowledged me, so that from the rising of the sun to the place of its setting people may know there is none besides me. I am the LORD, and there is no other."
Isaiah 45:14  This is what the LORD says: "The products of Egypt and the merchandise of Cush, and those tall Sabeans--they will come over to you and will be yours; they will trudge behind you, coming over to you in chains. They will bow down before you and plead with you, saying, 'Surely God is with you, and there is no other; there is no other god.' "
Isaiah 45:18  For this is what the LORD says--he who created the heavens, he is God; he who fashioned and made the earth, he founded it; he did not create it to be empty, but formed it to be inhabited--he says: "I am the LORD, and there is no other."
Isaiah 45:21  "Declare what is to be, present it--let them (fugitives from the nations) take counsel together. Who foretold this long ago, who declared it from the distant past? Was it not I, the LORD? And there is no God apart from me, a righteous God and a Savior; there is none but me."
Isaiah 46:9  "Remember the former things, those of long ago; I am God, and there is no other; I am God, and there is none like me."

And who is the Rock, except our God? 
Deuteronomy 32:4  He is the Rock, his works are perfect, and all his ways are just. A faithful God who does no wrong, upright and just is he.

(parentheses are mine)

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