Psalms 108:12

¹⁰ Who will bring me into the strong city? who will lead me into Edom?

¹¹ Wilt not thou, O God, who hast cast us off? and wilt not thou, O God, go forth with our hosts?

Give us help from trouble: for vain is the help of man.

¹³ Through God we shall do valiantly: for he it is that shall tread down our enemies.

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

Compare

BSB: Give us aid against the enemy, for the help of man is worthless.
KJV: Give us help from trouble: for vain is the help of man.
WEB: Give us help against the enemy, for the help of man is vain.
ASV: Give us help against the adversary; For vain is the help of man.
DARBY: Give us help from trouble; for vain is man's deliverance.
BLB: May You give to us help from adversity, and the salvation of man [is] emptiness.

Jeremiah 17:5–8
Thus saith the LORD; Cursed be the man that trusteth in man, and maketh flesh his arm, and whose heart departeth from the LORD.
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Psalms 146:3–5
Put not your trust in princes, nor in the son of man, in whom there is no help.
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Lamentations 4:17
As for us, our eyes as yet failed for our vain help: in our watching we have watched for a nation that could not save us.
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Isaiah 31:3
Now the Egyptians are men, and not God; and their horses flesh, and not spirit. When the LORD shall stretch out his hand, both he that helpeth shall fall, and he that is holpen shall fall down, and they all shall fail together.
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Isaiah 2:22
Cease ye from man, whose breath is in his nostrils: for wherein is he to be accounted of?
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Isaiah 30:3–5
Therefore shall the strength of Pharaoh be your shame, and the trust in the shadow of Egypt your confusion.
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Psalms 20:1–9
The LORD hear thee in the day of trouble; the name of the God of Jacob defend thee;
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Job 16:2
I have heard many such things: miserable comforters are ye all.
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