The swinging of an axe within a dense, tangled forest serves as a powerful image that captures the vast distance between the sacred construction of the Temple and the tragedy of its ruin. The physical act of chopping wood takes on a deep spiritual meaning, reflecting both the highest level of devotion to God and the ultimate malice of those who destroyed His home.
The primary approach among commentators links this imagery to the era when the First Temple was built. In those days, a person swinging an axe through the thick branches of the Lebanon forests to harvest wood for the building was performing a Commandment of immense greatness. It was as if the woodcutter was lifting the timber directly into heaven, placing it right before the Throne of Glory [רד״ק, מצודת דוד, מאירי]. The sound of the chopping was a cause for great joy, sending a noise of glory up to the heights [אבן עזרא].
However, this same imagery takes on a dark and tragic meaning when applied to the Temple's destruction. The invading enemy is compared to a careless woodcutter in a thick forest, wildly swinging axes in every direction to ruin the cities of Israel and the Temple without any discrimination [ביאור שטיינזלץ].
This destruction reveals a deeper intention behind the enemy's actions. Normally, when a person chops wood, raising the axe upward is merely a preparation for the downward strike. Yet, for the destroyers of the Temple, the upward swing itself was the primary goal. It symbolized their direct desire to strike at holiness and rebel against God [אלשיך]. As they battered the Temple gates, the enemy felt as though they were delivering blows against the heavens themselves. This arrogant sensation was intensified by a miraculous event during the destruction, in which the wooden gates of Jerusalem tangled around the enemy's axes and swallowed the weapons entirely [רש״י].