A harsh condemnation is directed at those who stood idly by during the battle, creating a sharp contrast between their inaction and the devotion and bravery of others. A severe command is issued to curse Meroz [מצודת ציון, ביאור שטיינזלץ]. The primary approach among commentators is that Meroz was a large, renowned city filled with mighty warriors, located very close to the front lines. Its residents bear the weight of this curse specifically because they were near the conflict yet chose to remain safely in their homes, unlike those living in distant regions who were not penalized for their absence [רד״ק, רלב״ג, מלבי״ם]. Alternatively, a different tradition suggests that Meroz was not a city at all, but rather the guiding star of the enemy commander Sisera, or perhaps a prominent individual [רש״י, אברבנאל]. It is also possible that the city simply bore the name of its leader [ביאור שטיינזלץ].
The identity of the divine messenger who pronounced this curse is understood in two main ways. One perspective views it as a divine prophecy spoken directly by Deborah, or by the angel who communicated with her and commanded the curse [רד״ק, רלב״ג, מצודת דוד, אברבנאל, ביאור שטיינזלץ]. Another understanding identifies the messenger as Barak, acting as God's emissary. In this view, Barak placed the residents of Meroz under a severe, public excommunication, complete with the blast of four hundred shofars [רש״י, אלשיך]. The curse is doubled and aimed directly at the inhabitants because they selfishly locked themselves away in their homes [רש״י]. A nuanced distinction suggests that the angel initially cursed only the city itself, as angels cannot read human hearts and might have assumed the residents were simply weak or fearful. Deborah, however, knew through prophecy that these men were actually strong and capable of helping, prompting her to explicitly add a curse upon the inhabitants themselves [אהבת יהונתן].
The core of their guilt lies in their failure to come to the aid of God. While God certainly does not require human assistance, the underlying principle is that anyone who aids the people of Israel is considered to be assisting the Divine Presence. Conversely, whoever harms them or withholds support is viewed as having slighted God Himself [רש״י, צאינה וראינה, אלשיך]. The accusation emphasizes that they refused to help God's nation fight against the mighty forces of the enemy [מצודת דוד]. Reversing this perspective, another interpretation suggests that God is the one who empowers the mighty. Because the Divine Presence guaranteed the victory, the residents of Meroz would not have been in any real danger had they joined the campaign. Their refusal to participate even under such secure conditions only magnifies their guilt [אלשיך].
The failure of the people of Meroz is especially glaring when compared to the rest of creation. Even the forces of nature, such as the heavens and the Kishon River, actively participated in the battle, yet these nearby Israelites simply stood by and watched [אברבנאל]. Although the war was decisively won without them, they are remembered for eternal disgrace due to their lack of participation [ביאור שטיינזלץ]. Ultimately, their behavior stands in absolute contrast to Yael. While the mighty men of Meroz were cursed for sitting idle and doing nothing in their homes, Yael is blessed for the bold and wise actions she took inside her own tent for the sake of heaven [מלבי״ם, אברבנאל].