Job 41:26

²⁴ His chest is as hard as a rock, as hard as a lower millstone!

²⁵ When Leviathan rises up, the mighty are terrified; they withdraw before his thrashing.

The sword that reaches him has no effect, nor does the spear or dart or arrow.

²⁷ He regards iron as straw and bronze as rotten wood.

²⁸ No arrow can make him flee; slingstones become like chaff to him.

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

Compare

BSB: The sword that reaches him has no effect, nor does the spear or dart or arrow.
KJV: The sword of him that layeth at him cannot hold: the spear, the dart, nor the habergeon.
WEB: If one attacks him with the sword, it can’t prevail; nor the spear, the dart, nor the pointed shaft.
ASV: If one lay at him with the sword, it cannot avail; Nor the spear, the dart, nor the pointed shaft.
DARBY: If any reach him with a sword, it cannot hold; neither spear, nor dart, nor harpoon.
BLB: The sword reaching him shall not stand—[not] spear, dart, or lance.

ÅB: Rammes den med sverd, så biter det ikke på den, heller ikke lanse, pil eller kastespyd.
OTB: Sverdet som slår ham, seirer ikke,
Heller ikke spydet, pilen eller kastespydet.
B1930: Rammes den med sverd, så biter det ikke på den, heller ikke lanse, pil eller kastespyd.

Job 39:21–24
He paws in the valley and rejoices in his strength; he charges into battle.
Read in context