Passage
For David himself. Judge thou, O Lord, them that wrong me: overthrow them that fight against me.
For David himself. Judge thou, O Lord, them that wrong me: overthrow them that fight against me.
Psalms 34:1 For David himself. Judge thou, O Lord, them that wrong me: overthrow them that fight against me.
Psalms 34:2 Take hold of arms and shield: and rise up to help me.
Psalms 34:3 Bring out the sword, and shut up the way against them that persecute me: say to my soul: I am thy salvation.
The verse centers on "david", "himself", "judge", "thou", "lord", "wrong", "overthrow", and "fight". It is saying that the verse draws attention to "david" and "himself", so its meaning should be read from those terms before moving to application.
The next verse adds "Take hold of arms and shield and...", so "david" and "himself" should be read forward into that movement. In Psalms context, the local focus is worship, trust, the LORD's kingship, and covenant mercy.
A plain takeaway is to answer the verse's own emphasis on "david" and "himself" with trust shaped by these words, not by a vague optimism outside the passage.