The ultimate fate of wicked people and the manner in which their lives end stands at the heart of Job’s desperate outcry. He watches as corrupt individuals somehow manage to escape prolonged punishment. The primary approach among commentators is that the wicked experience a rapid, painless end. They achieve success and rise to great heights, but this elevation lasts only a brief moment before they vanish from the world in the blink of an eye [רש״י, אבן עזרא, רמב״ן]. This reality brings deep frustration. Naturally, one would expect cruel individuals to endure long, difficult suffering before they die. In practice, however, they pass away easily, enjoying good health and experiencing no sorrow [מצודת דוד, אלשיך]. Eventually, they are brought low, falling into a state of weakness, poverty, and decline [רש״י, מצודת ציון, רלב״ג].
When death finally comes, they are gathered in just like anyone else. Their fleeting existence is compared to an object that leaps into the air for a brief second before instantly crashing back down to earth [מצודת דוד, תקות אנוש, רמב״ן]. Their end is further likened to the top of a grain stalk during the harvest season. Just as the tip of the grain is effortlessly sliced off by a sickle and quickly dries up, so too are the wicked cut down with ease [מצודת ציון, רלב״ג, תקות אנוש]. Remarkably, this sudden death, which wipes them out without leaving behind any roots or branches, does not bother them in the slightest. Their entire goal was simply to satisfy their physical desires in this world, and they have absolutely no interest in leaving behind a lasting legacy or children [רמב״ן].
Taking a completely different path, another interpretation views these events as a vivid description of criminals or pirates setting an ambush. In this scenario, the attackers raise themselves up just enough to scout the area for potential prey, and then immediately drop back down into hiding so they remain unseen. They crouch low in hidden valleys and then suddenly leap onto their victims to silence and destroy them. Within this context, the imagery of the grain takes on a darker meaning, representing deep water whirlpools where these robbers sink the ships of those they have plundered [רלב״ג, מלבי״ם].
A final, unique perspective shifts the focus entirely to God's divine providence. It suggests that the wicked survive only because of an unexplained, extra layer of protection from God. If God were to lift or lower His gaze from them even slightly, removing this mysterious safeguard, the wicked would be instantly uprooted, wither away, and perish [ביאור שטיינזלץ].