Upon reaching the site God had pointed out, Abraham built an altar and arranged the wood upon it. The wood Isaac had carried was supplemented by additional logs that Abraham had gathered from the vicinity, recognizing that the amount he carried was insufficient for a complete sacrifice. This wood foreshadowed Christ's burden of the cross He would bear to Calvary, symbolizing the totality of the sacrifice yet to come. After laying the wood on the altar, Abraham revealed the Lord's command to Isaac. According to Josephus, he explained, "My son, you have been chosen by God. I raised you with love, hoping to see you flourish as a man and to pass my legacy to you. Yet, it pleases God that I must surrender you; bear this sacrifice with courage. I obey the Lord who asks this of us out of His boundless mercy that sustains us in both times of conflict and peace. Since you are born of flesh, your time in this world is limited. Your sacrifice, however, does not stem from any failing on your part but comes as an offering to God the Father. Trust that He desires to receive your spirit into His eternal care, as your legacy is to keep my memory alive not through your own strength but through the Creator’s grace."
Isaac, as a faithful son, embraced his father's words, asserting, "If I were to disobey the will of God and my father, I would not be worthy of my birth; both desires align in this, and even if it were only my father's wish, I must honor it." It seems evident that Abraham prepared Isaac for the sacrificial act, imparting to him the divine directive while instilling hope in the promise of God's everlasting mercy. Blessed Isaac did not reject the call to sacrifice, nor did he fear death but accepted it, embodying obedience to his father's will and to God’s command, reflecting the rare nobility of their shared faith.
St. Chrysostom marvels at their steadfastness, proclaiming, "O pious souls! O strong spirits! O great powers of the soul! Should we be surprised by the firm courage of the patriarch or the unwavering submission of the youth, who did not resist but willingly placed himself as a lamb upon the altar, awaiting his father's hand?" The Holy Martyr Zinon reflects on Abraham’s extraordinary trial, where disobedience could have branded him a sacrilegious man or a torturer if he proceeded with the sacrifice. Through remarkable patience and divine love, he reconciled his love for God with that for his child, determined to offer what was most dear. The scene was one where neither party displayed fear; instead, they acted with faith and unity in fulfilling God’s will.
Abraham bore the knife, while Isaac carried the wood, both committed to their divine mission with trust in God's purpose. This mutual love and obedience exemplify true piety. As they approached the act, a spiritual exchange occurred where the anticipated act of sacrifice transitioned into a holy covenant. The would-be infanticide turned into an innocent offering, both father and son manifesting eternal glory and serving as a testament to sincere devotion to God through the ages.
Isaac, burdened with the wood and prepared for sacrifice, serves as a prefiguration of Christ, who bore His cross as an offering to God the Father for the sins of humanity. The Venerable Ephrem draws parallels, stating, “Isaac, carrying wood, ascended to his destiny, while our Savior took up the cross on His way to His offering for us. Reflect on the knife as representing the spear; the place of sacrifice as the Throne; the wood as the cross, and the fire as God's profound love for the world.” In this light, he highlights the connection between the tied lamb and Christ, the Lamb of God, who was held upon the cross with both hands.