Psalms 18:31

²⁹ For in You I can charge an army, and with my God I can scale a wall.

³⁰ As for God, His way is perfect; the word of the LORD is flawless. He is a shield to all who take refuge in Him.

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

³² It is God who arms me with strength and makes my way clear.

³³ He makes my feet like those of a deer and stations me upon the heights.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB: For who is God besides the LORD? And who is the Rock except our God?
KJV: For who is God save the LORD? or who is a rock save our God?
WEB: For who is God, except the LORD? Who is a rock, besides our God,
ASV: For who is God, save Jehovah? And who is a rock, besides our God,
DARBY: For who is God save Jehovah? and who is a rock if not our God?
BLB: For who [is] God, apart from YHWH? And who [is] the Rock, except our God?—

ÅB: For hvem er Gud foruten Herren,
og hvem er en klippe foruten vår Gud?
OTB: For hvem er Gud, om ikke Herren?
Og hvem er en klippe, om ikke vår Gud?
B1930: For hvem er Gud foruten Herren, og hvem er en klippe, uten vår Gud?

Deuteronomy 32:31
For their rock is not like our Rock, even our enemies concede.
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Psalms 86:8
O Lord, there is none like You among the gods, nor any works like Yours.
Read in context
Isaiah 45:5
I am the LORD, and there is no other; there is no God but Me. I will equip you for battle, though you have not known Me,
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2 Samuel 22:32
For who is God besides the LORD? And who is the Rock except our God?
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Deuteronomy 32:39
See now that I am He; there is no God besides Me. I bring death and I give life; I wound and I heal, and there is no one who can deliver from My hand.
Read in context
1 Samuel 2:2
There is no one holy like the LORD. Indeed, there is no one besides You! And there is no Rock like our God.
Read in context
Isaiah 45:21–22
Speak up and present your case— yes, let them take counsel together. Who foretold this long ago? Who announced it from ancient times? Was it not I, the LORD? There is no other God but Me, a righteous God and Savior; there is none but Me.
Read in context