It's like Abraham's offering when he climbed the mountain, and we won't find another offering to redeem this one. Cf. Genesis 22:1-18. It is precisely on Mount Moriah, where the Temple is located, that the Bible places Isaac's sacrifice. He was replaced at the last moment by a ram.
Genesis 22, 1-8
Gen 22:1-8: After these events, God put Abraham to the test. He said to him: "Abraham! He replied, "Here I am!" God said, "Take your son, your only son, the one you love, Isaac, and go to the land of Moriah, and offer him there as a burnt offering on the mountain I will show you."
Abraham rose early in the morning, saddled his donkey, and took with him two of his servants and his son Isaac. He split the wood for the burnt offering, and set off for the place God had indicated. On the third day, Abraham looked up and saw the place from afar. Abraham said to his servants: "Stay here with the donkey. Me and the boy will go all the way over there to worship, then we'll come back to you."
Abraham took the wood for the burnt offering and loaded it onto his son Isaac; he took the fire and the knife, and the two of them went together. Isaac said to his father Abraham: "My father! - Well, my son?" Isaac replied, "Here's the fire and the wood, but where's the lamb for the burnt offering?" Abraham replied, "God will know how to find the lamb for the burnt offering, my son." And the two of them set off together.
They arrived at the place God had indicated. Abraham built the altar there and laid out the wood; then he bound his son Isaac and put him on the altar, on top of the wood. Abraham stretched out his hand and took the knife to slaughter his son. But the angel of the Lord called to him from heaven and said: "Abraham! Abraham!" He replied, "Here I am!" The angel said to him: "Don't lay a hand on the boy! Don't hurt him! I know now that you fear God: you did not refuse me your son, your only son."
Abraham looked up and saw a ram being held by its horns in a bush. He went and took the ram and offered it as a burnt offering in place of his son. Abraham named the place "The Lord Sees". Today it's called "Sur-le-mont-le-Seigneur-est-vu". From heaven, the angel of the Lord called Abraham a second time.
He declared: "I swear by myself, oracle of the Lord: because you have done this, because you have not refused me your son, your only son, I will fill you with blessings, I will make your descendants as numerous as the stars in the sky and the sand on the seashore, and your descendants will occupy the strongholds of their enemies. Because you have listened to my voice, all the nations of the earth will bless one another by the name of your descendants."