In moments of deep crisis and overwhelming hardship, human nature instinctively turns toward God. People often make solemn promises and commitments, seeking divine intervention when they feel most vulnerable. In fact, the primary motivation for making vows usually arises during times of trouble [ביאור שטיינזלץ].
The primary approach among commentators is that the focus here is on the specific promises the Israelites made to God. Driven by the heavy burden of exile and the crushing pressure of their enemies, they made commitments, praying earnestly that He would save them [רד״ק, מאירי]. These commitments are not merely internal thoughts, but formal promises clearly spoken and verbalized to God [אבן עזרא, מצודת דוד, מצודת ציון, ביאור שטיינזלץ].
While this is generally understood as a continuous expression of promises made under pressure, an additional perspective reveals a layered intention in how these commitments are formed. The initial verbalization relates to taking on a voluntary offering during the ongoing, difficult period of exile. In contrast, the speech that emerges from a place of immediate distress represents an actual, formal vow, made specifically to ask for rescue and salvation from present danger [אלשיך].