Following the disastrous report of the spies, a heavy atmosphere of despair and rebellion swept through the Israelite camp. The immediate reaction of the people was deeply destructive, beginning with quiet, internal unrest and culminating in an absolute refusal to follow God's command. The primary approach among commentators is that the nation was consumed by crying, complaining, and deep resentment [אבן עזרא, מצודת ציון, ביאור שטיינזלץ].
This widespread unrest took place privately, within the confines of their own tents. On that fateful night, the ninth of Av, the spies sat in their dwellings and wept, mourning the perceived certainty that their wives and children would soon fall into the hands of the Canaanites. This bitter weeping was contagious. It quickly spread to neighboring families until the entire nation was wailing together in their tents [אלשיך]. The underlying purpose of these private complaints was to actively discourage one another, spreading hopelessness to ensure that no one would attempt to enter the land or engage in battle [מאירי]. In their despair, they went so far as to claim that God had brought them out of Egypt out of hatred, simply to have them destroyed by the Amorites [מלבי״ם, מאירי].
As a direct result of this panic, the Israelites completely refused to follow God's direction, openly rebelling against His instruction to move forward [מאירי]. This failure to listen was not merely a practical refusal to march; it represented a complete collapse of faith in God's word [מצודת דוד]. The root of their sin lay in the belief that God was simply unable to save them from the surrounding nations [מלבי״ם, אלשיך]. By adopting this mindset, they completely ignored the divine voice they had personally heard at Mount Sinai. There, God had clearly declared that He was the one who brought them out of Egypt. Instead of trusting in that profound experience, they shattered their own faith in His power to protect them [אלשיך].