At the deepest point of slavery in Egypt, the human cries of the Israelites break through the crushing weight of their suffering to awaken Divine intervention. The process of redemption begins as the raw distress of the present connects with the ancient promises made to the founders of the nation. The ascent of this plea is gradual; a cry escapes the mouths of the enslaved, travels up to the heavens, and finally reaches the ears of God [קאסוטו]. The primary approach among commentators is that this sound is a deep groan of suffering [רש״י, ביאור שטיינזלץ]. However, others emphasize that the specific nature of this cry represents the agonizing gasp of a dying person. It is the sound of those standing at the very edge of death, whether it be the innocent children who were killed or the exhausted workers collapsing under the deadly burden of forced labor [מלבי״ם, רש״ר הירש, חזקוני].
Commentators differ on the exact nature of this plea. Some view it as a conscious, intentional prayer offered by a small group of righteous individuals living in that generation [ספורנו]. Others argue that it is not an organized prayer at all, but rather a spontaneous, unfiltered outburst of personal pain, with each person crying out from their own private misery [העמק דבר]. God's response to this pain is driven by three main factors: the sheer cruelty of the Egyptian oppressors, the accumulated merit of the forefathers, and the few remaining good deeds of the Israelites, who managed to preserve their unique identity, names, and language despite the exile [צרור המור].
The memory of the covenant made with Abraham, Isaac, and Jacob highlights a severe spiritual reality [רש״י, מזרחי, ביאור שטיינזלץ]. On their own merit, the Israelites were deeply involved in idol worship and were likely unworthy of being saved [רש״ר הירש, ביאור יש״ר]. Yet, God listens to their agony specifically because they are the children of this ancient agreement [העמק דבר]. Even though a period of harsh suffering was decreed upon them, the covenant guaranteed that they would never be completely destroyed, ensuring they would survive to become a lasting nation [מלבי״ם]. Recognizing the immediate, physical threat of their total extinction, God steps in to secure their future based entirely on the merit of their past [רש״ר הירש].
The exact timing of this rescue raises a question as to why relief arrives at this specific moment. One perspective is that the four hundred years of exile originally promised to Abraham have simply run their course [רשב״ם, חזקוני]. Conversely, others suggest that the extreme brutality and intense suffering of the slavery fill the required measure of pain much faster than expected, prompting God to step in and redeem them ahead of the original schedule [אבן עזרא, אבי עזר]. Furthermore, the combined spiritual force of the three forefathers uniting in prayer on behalf of their descendants provides the ultimate push to bring the redemption early [פרדס יוסף].