(1) Some time afterward, God put Abraham to the test, saying to him, “Abraham.” He answered, “Here I am.” (2) “Take your son, your favored one, Isaac, whom you love, and go to the land of Moriah, and offer him there as a burnt offering on one of the heights that I will point out to you.” (3) So early next morning, Abraham saddled his ass and took with him two of his servants and his son Isaac. He split the wood for the burnt offering, and he set out for the place of which God had told him. (4) On the third day Abraham looked up and saw the place from afar. (5) Then Abraham said to his servants, “You stay here with the ass. The boy and I will go up there; we will worship and we will return to you.” (6) Abraham took the wood for the burnt offering and put it on his son Isaac. He himself took the firestone and the knife; and the two walked off together. (7) Then Isaac said to his father Abraham, “Father!” And he answered, “Yes, my son.” And he said, “Here are the firestone and the wood; but where is the sheep for the burnt offering?” (8) And Abraham said, “It is God who will see to the sheep for this burnt offering, my son.” And the two of them walked on together.
(1) יראה לו השה — this means as much as: He will look out for and choose a lamb for Himself, and if there will be no lamb for a burnt offering, then, בני MY SON will be the offering. Although Isaac then understood that he was travelling on to be slain, yet. (2) וילכו שניהם יחדיו THEY WENT BOTH OF THEM TOGETHER — with the same ready heart (Genesis Rabbah 56:4).
From Aish.com
[I]t is clear that Isaac was a grown man at the time of his binding. He understood full well what was happening to him, and no doubt he could have easily overpowered his elderly father and run off. Yet he did no such thing. He patiently allowed his father to prepare him as a sacrifice – until the final moment when the angel called the trial off.
For this reason, the Sages view Isaac’s binding as not only a meritorious act of Abraham, but one of Isaac as well.
(יט) וְאֵ֛לֶּה תּוֹלְדֹ֥ת יִצְחָ֖ק בֶּן־אַבְרָהָ֑ם אַבְרָהָ֖ם הוֹלִ֥יד אֶת־יִצְחָֽק׃
אברהם הוליד את יצחק, we are told in Baba Metzia 86 that Yitzchok’s facial features were so similar to those of his father that anyone ever encountering Yitzchok immediately knew that he must be the son of Avraham. The reason that this had been arranged so by G’d was that when someone claims to have become a father in his old age, some people tend to doubt the “father’s” claim, assuming that the woman who had born that child must have been unfaithful to her husband, or that at least the baby now presented as this father’s was in fact a foundling. Yitzchok’s amazing similarity to his father precluded anyone from making such spurious accusations. Another reason that the Torah repeated something which we all knew, i.e. that Avraham had sired Yitzchok, was that Yitzchok possessed the same virtues and wonderful qualities which Avraham excelled in, so that it was clear who must have been his father not only physically, but that the same father also transmitted a spiritual legacy to his son.
(1) Abraham was now old, advanced in years, and יהוה had blessed Abraham in all things. (2) And Abraham said to the senior servant of his household, who had charge of all that he owned, “Put your hand under my thigh (3) and I will make you swear by יהוה, the God of heaven and the God of the earth, that you will not take a wife for my son from the daughters of the Canaanites among whom I dwell, (4) but will go to the land of my birth and get a wife for my son Isaac.” (5) And the servant said to him, “What if the woman does not consent to follow me to this land, shall I then take your son back to the land from which you came?” (6) Abraham answered him, “On no account must you take my son back there!
(1) ותכהין HIS EYES WERE DIM .... When Isaac was bound upon the altar and his father was about to slay him, at that very moment the heavens opened, the ministering angels saw it and wept, and their tears flowed and fell upon Isaac’s eyes which thus became dim (Genesis Rabbah 65:10). Another explanation is: They became dim just in order that Jacob might receive the blessings (Genesis Rabbah 65:8).
(12) Isaac sowed in that land and reaped a hundredfold the same year. יהוה blessed him, (13) and the man grew richer and richer until he was very wealthy: (14) he acquired flocks and herds, and a large household, so that the Philistines envied him. (15) And the Philistines stopped up all the wells which his father’s servants had dug in the days of his father Abraham, filling them with earth. (16) And Abimelech said to Isaac, “Go away from us, for you have become far too big for us.” (17) So Isaac departed from there and encamped in the wadi of Gerar, where he settled. (18) Isaac dug anew the wells which had been dug in the days of his father Abraham and which the Philistines had stopped up after Abraham’s death; and he gave them the same names that his father had given them. (19) But when Isaac’s servants, digging in the wadi, found there a well of spring water, (20) the herdsmen of Gerar quarreled with Isaac’s herdsmen, saying, “The water is ours.” He named that well Esek,*Esek I.e., “contention.” because they contended with him. (21) And when they dug another well, they disputed over that one also; so he named it Sitnah.*Sitnah I.e., “harassment.” (22) He moved from there and dug yet another well, and they did not quarrel over it; so he called it Rehoboth, saying, “Now at last יהוה has granted us ample space*ample space Heb. hirḥib, connected with “Rehoboth.” to increase in the land.” (23) From there he went up to Beer-sheba. (24) That night יהוה appeared to him and said, “I am the God of your father Abraham’s [house]. Fear not, for I am with you, and I will bless you and increase your offspring for the sake of My servant Abraham.” (25) So he built an altar there and invoked יהוה by name. Isaac pitched his tent there and his servants started digging a well. (26) And Abimelech came to him from Gerar, with Ahuzzath his councilor and Phicol chief of his troops. (27) Isaac said to them, “Why have you come to me, seeing that you have been hostile to me and have driven me away from you?” (28) And they said, “We now see plainly that יהוה has been with you, and we thought: Let there be a sworn treaty between our two parties, between you and us. Let us make a pact with you (29) that you will not do us harm, just as we have not molested you but have always dealt kindly with you and sent you away in peace. From now on, be you blessed of יהוה !” (30) Then he made for them a feast, and they ate and drank. (31) Early in the morning, they exchanged oaths. Isaac then bade them farewell, and they departed from him in peace. (32) That same day Isaac’s servants came and told him about the well they had dug, and said to him, “We have found water!” (33) He named it Shibah;*Shibah As though “oath.” therefore the name of the city is Beer-sheba to this day.