Passage
He teacheth my hands to war: and maketh my arms like a bow of brass.
2 Samuel 22:35 (DRB)
Nearby Context
2 Samuel 22:33 God who hath girded me with strength, and made my way perfect.
2 Samuel 22:34 Making my feet like the feet of harts, and setting me upon my high places.
2 Samuel 22:35 He teacheth my hands to war: and maketh my arms like a bow of brass.
2 Samuel 22:36 Thou hast given me the shield of my salvation: and thy mildness hath multiplied me.
2 Samuel 22:37 Thou shalt enlarge my steps under me: and my ankles shall not fail.
Study Lenses
The verse centers on "teacheth", "hands", "maketh", "arms", "like", and "brass". It is saying that the verse draws attention to "teacheth" and "hands", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 34's "Making my feet like the feet of..." into verse 36's "Thou hast given me the shield of...", so "teacheth" and "hands" belong inside that flow. In 2 Samuel context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "teacheth" and "hands" with trust shaped by these words, not by a vague optimism outside the passage.