A deep hypocrisy takes hold when people begin to view the Temple not as a place of true worship, but as a protective shield granting them immunity for their sins. They are confronted with a striking question of astonishment, challenging whether they have reduced God's house to a mere hideout [רש״י]. In the natural world, a cave is a dark hole in the ground offering shelter and concealment [מצודת ציון]. Wicked, reckless lawbreakers and wild animals retreat to these hidden places outside the city limits to escape justice after committing their offenses [מצודת ציון, ביאור שטיינזלץ]. In a similar way, the people believe that after engaging in terrible acts, they can simply flee to the Temple and take refuge [רד״ק, מצודת דוד].
By arriving at the Temple and bowing down, the people create a false display of righteousness. This performance successfully masks their bad deeds from the eyes of society [מלבי״ם]. They operate under the mistaken belief that the mere physical act of showing up to the Temple will save them from any punishment [רד״ק]. However, while human beings are easily deceived by this outward show of piety, God sees the hidden realities and the deep secrets of the human heart [רד״ק, מלבי״ם].
God recognizes their true, corrupt attitude toward the Temple [רש״י]. He examines both their wicked behavior in the outside world and their completely flawed approach to His holy space [ביאור שטיינזלץ]. He knows perfectly well that they have no real intention of changing their ways, and that they fully plan to return to their terrible deeds as soon as they leave [רד״ק, מצודת דוד]. Relying on the Temple as a cover for bad behavior is not just a simple mistake; it actually doubles the severity of the sin. Standing before God immediately after violating His will is an act of intense arrogance and massive rebellion that deeply angers Him [רד״ק]. The people's confident assumption that God will never destroy His own house, regardless of their actions, is exposed as a complete and dangerous illusion [רד״ק, מלבי״ם].