Shared ground
These verses present a focused portrait of the speaker’s attackers. The text links their inner condition (“callous hearts”) with their outward behavior (proud speech). It also describes the danger as close and coordinated: they are near enough to “surround” and to track the group’s steps, watching for the moment to bring them down.
The lion imagery adds emotional force and moral evaluation. The attackers are not pictured as simply “in conflict” with the speaker but as predators eager to harm, including by concealment (“lurking in secret places”).
Where interpretation differs
One difference is what kind of harm “cast us down to the earth” most strongly implies. Some read it mainly as physical violence (even killing), since the lion comparison and the language of “prey” fit an attack. Others think the main idea could be public humiliation or crushing defeat (possibly through intimidation, accusation, or overpowering), because “down to the earth” can picture disgrace as well as injury.
Another difference is whether “he is like a lion” points to a single ringleader or summarizes the whole group as a single threat. The verses move between plural (“they”) and singular (“he”), which can support either a leader-in-view or a collective painted as one beast.
Why the disagreement exists
The Hebrew imagery is vivid but not technical. Words like “heart” can refer to feelings, conscience, or settled will. Likewise, “cast down to the earth” can describe a literal takedown or a broader picture of being crushed. The shift from “they” (vv.10–11) to “he” (v.12) can be read as either a change of focus to a leader or a poetic way of summarizing the attackers as one predator.
What this passage clearly contributes
Explicitly, the passage claims the attackers are hardened inside, proud in speech, and actively stalking their victims with intent to bring them down; it compares the threat to a prey-hungry lion that also knows how to hide (vv.10–12). Theological inference: it portrays arrogance and lack of compassion as morally tied to oppressive action, and it frames the victim’s danger as both imminent and calculated, setting up the later request for God’s protective intervention in the psalm (Psalm 17:13).