Shared ground
These lines are a direct appeal to God to stop violent people from doing damage. The images focus on capacity to harm: teeth that bite and tear (like lions) and arrows that strike at a distance. The prayer is not mainly about changing the opponents’ hearts; it asks that their attacks fail.
The speaker’s approach assumes God is able to step in as judge and protector. The psalm treats human aggression as real, but not ultimate: God can neutralize it.
Where interpretation differs
Some readers take “break their teeth” as strongly figurative language for disabling power (like removing a weapon). Others think it also functions as a real curse calling for physical harm, even if expressed poetically.
There is also some uncertainty about who “they” are. Some read the target as corrupt leaders and judges (the broader psalm speaks to unjust rule). Others read it more generally as violent enemies who threaten the righteous.
Why the disagreement exists
The language is intentionally vivid and bodily (“teeth,” “young lions”), which can sound like a request for injury. At the same time, the poem’s chain of images (teeth → water disappearing → blunt arrows) consistently points to ineffectiveness and removal of threat, which supports reading the speech as metaphor-heavy petition.
The identity of “they” is debated because these verses do not restate the opponents’ role; they assume the earlier description in the psalm.
What this passage clearly contributes
Explicitly, the text presents prayer as a way to bring violent threat to God, asking him to remove the opponents’ ability to injure: “break their teeth,” make them “vanish” like draining water, and make their arrows “blunt.” Theologically, it portrays God as the one who can prevent harm at every range—close (mouth/teeth) and far (bow/arrows)—and it frames hoped-for justice as the stopping of oppression, not merely the survival of the victim.