שמואל ב, פרק כ״ג, פסוק ו׳

In stark contrast to the stable and fruitful reign of the righteous, the wicked are likened to a harmful, useless, and wandering hazard destined for destruction. These wicked individuals are identified as political enemies of David, such as Saul, or corrupt kingdoms like that of Jeroboam and his associates [מצודת דוד, רלב״ג, אברבנאל]. Rather than putting down deep roots, they are compared to a tossed and wandering thorn [מצודת ציון, שטיינזלץ].

The primary approach among commentators is that this thorn represents a painful nuisance that people actively try to push away. It is kicked and tossed from place to place by anyone who encounters it, simply because it inflicts pain on whoever touches it [רד״ק, אברבנאל]. Others view this wandering thorn as one that stubbornly sticks to a person's foot, dragged along from place to place against their will. This imagery highlights the inherent instability of corrupt rulers, showing that their power cannot remain firmly established in one location [מצודת דוד]. Another perspective sees the thorn as a symbol of useless leaders who produce no fruit. Once they rise to power, they only cause damage, piercing anyone who dares to come close to them [רלב״ג, מלבי״ם, אברבנאל]. A further interpretation identifies the plant as a specific type of thistle. In its early stages of growth, it appears soft and sways gently in the wind, but it eventually hardens into a dangerous obstacle [רש״י].

Dealing with such wicked individuals brings an initial sense of helplessness. Because of their sharp and dangerous nature, it is impossible to simply grab these thorns with bare hands to uproot them or clear them from the path [מצודת דוד, רלב״ג, רד״ק, שטיינזלץ]. Unlike useful crops or soft grass that can be easily gathered, removing these hazards requires deliberate force. They must be handled with heavy tools or fire, accompanied by a prayer to God that He will ultimately remove them from His vineyard [מלבי״ם, אברבנאל].