בראשית, פרק כ״ב, פסוק י׳

The ultimate test of faith reaches its absolute climax as a father stands over his only son. Suppressing his natural parental mercy, he prepares to carry out the Divine command to its very end. This moment marks the complete transition from thought to action. Reaching out was not done with hesitation or weakness. Instead, Abraham acted with courage, incredible swiftness, and a willing soul, moving as eagerly as someone reaching out to grasp something they deeply desire [הכתב והקבלה, ביאור יש״ר, צרור המור]. He did not harbor any secret hope that God would suddenly cancel the decree. His intention was entirely genuine, fully prepared to sacrifice his son with a complete heart [אלשיך]. This remarkable swiftness drew upon his past devotion. Having already found the strength to carry out the Commandment of circumcision with his own hands, he was empowered to reach out his hand once again for this ultimate sacrifice [קונטרס חיבה יתירה].

The instrument chosen for this act was a standard slaughtering knife [ביאור שטיינזלץ]. While its physical purpose is to prepare food for consumption, it carries a profound spiritual legacy. Because of the absolute dedication shown with that blade, the Israelites are spiritually sustained by its merit throughout all generations [דעת זקנים, צרור המור]. From a practical standpoint, this moment established the rule that a burnt offering must be prepared using a detached tool passed from hand to hand, such as a knife, rather than anything attached to the body [תורה תמימה]. Abraham planned to perform the sacrifice directly on the altar first, allowing the fire to consume the offering only afterward, following the standard procedure for all sacrifices [רד״ק]. Ultimately, this entire event became the defining prototype for future service in the Temple, with the specific method of binding Isaac serving as the exact model for how the daily offerings would be bound [בעל הטורים].

Abraham was so deeply immersed in fulfilling the Commandment that he rushed to complete it, requiring the angel to call his name twice in rapid succession just to break his focus and stop him [רבנו בחיי, אלשיך]. A surprising alternative tradition introduces a sudden complication at this very moment. According to this view, as Abraham moved his hand, he discovered the knife had mysteriously vanished. Overcome with sadness and believing he was suddenly deemed unworthy to offer his son, he desperately attempted to complete the sacrifice with his bare hands. This explains why the angel had to issue two distinct instructions: first to stop him from using his hands, and second to prevent him from searching for the missing blade [פענח רזא].

Although the physical sacrifice was never carried out, God viewed the deed as entirely complete, recognizing that Abraham had fulfilled the Commandment in thought, speech, and action [אלשיך]. By being willing to act with such severity toward himself, as if he had no son at all, Abraham proved that his reverence for God completely overshadowed his profound love for his child [צרור המור]. In return for this unparalleled devotion, Abraham asked God for an eternal promise. He noted that he had suppressed his natural instincts and remained silent, never questioning God about the glaring contradiction between the earlier promise of a great nation through Isaac and the current command to sacrifice him. He asked that in the future, whenever his descendants sin and face distress, God should remember this moment, view it as if Isaac's ashes were actually piled upon the altar, and grant them forgiveness [רבנו בחיי].