Shared ground
These verses combine two movements: a plea for reversal and a vow of praise. The speaker asks that the enemy’s hidden scheme collapse back on the enemy (v.8). The hoped-for outcome is described as sudden and self-inflicted: the same “net” meant for the speaker becomes the enemy’s trap.
The second movement assumes deliverance and promises a response. The speaker’s “soul” will rejoice in Yahweh (v.9), and “all my bones” will speak praise (v.10). The reason given for praising Yahweh is his unmatched character shown in action: he delivers the “poor” and “needy” from someone “stronger” and from a robber (v.10). Psalm 35:8–10 centers praise on Yahweh as rescuer of the vulnerable.
Where interpretation differs
Who is the “him”? The text can be heard as focused on one main enemy (singular language) or as a representative “him” for a group of attackers. Either way, the request targets the aggressor(s) behind hidden harm.
What is the “net”? Some read the net as literal ambush danger; others hear it primarily as a metaphor for secret plotting (including false accusations). The overall point is the same: concealed harm is turned back.
What does the speaker rejoice over? The text explicitly says joy is “in Yahweh” and “in his salvation” (experienced rescue). Some readers think that includes satisfaction at the enemy’s downfall; others stress that the passage frames joy around Yahweh’s deliverance rather than gloating.
Why the disagreement exists
The imagery is poetic and compressed. “Net,” “destruction,” and “all my bones” are vivid pictures that can point to physical danger, social betrayal, or both. Also, v.8 speaks directly about the enemy’s ruin, while vv.9–10 pivot to joy and praise; interpreters differ on how tightly those two are emotionally linked.
What this passage clearly contributes
Explicitly, the passage presents (1) a moral vision where hidden violence is asked to rebound on the one who set it, and (2) an understanding of Yahweh’s rescue as the source of joy and public praise. Theological inference drawn from these claims is that Yahweh is portrayed as uniquely committed to defending people at a power disadvantage—“the poor…from him who is too strong” and from those who steal by force (v.10).