The Book of Jubilees, also known as 'Little Genesis' or 'Kufale', is a pseudepigraphal text of the Old Testament that rewrites the history of Genesis and part of Exodus, with emphasis on the division of time into jubilees and weeks of years. It is canonical only in the Ethiopian Orthodox Tewahedo Church and preserved entirely in Ge'ez. The book was originally written in Hebrew around the 2nd century BC and is cited by the Early Church Fathers.
Jubilees
Chapter 18
And God said to Abraham: "Abraham, Abraham," and he said: "Here I am."
And He said: "Take your beloved son, Isaac, whom you love, and go to the highlands, and offer him on one of the mountains which I will show you."
And he rose early in the morning and saddled his donkey, and took his two young men with him, and Isaac, his son, and cut the wood for the burnt offering, and he went to the place on the third day, and saw the place from afar.
He came to a well of water and said to his young men: "Stay here with the donkeys, and I and the boy must go, and after we worship we will return to you."
And he took the wood of the burnt offering and placed it on Isaac his son, and he took in his hand the fire and the knife, and the two went together to the place.
And Isaac said to his father: "Father," and he said: "Here I am, my son." And he said to him: "Behold the fire, the knife and the wood, but where is the lamb for the burnt offering, father?"
And he said: "God will provide Himself a lamb for the offering, my son." And he approached the place on the mountain of God.
And he built an altar, and placed the wood on the altar, and bound Isaac his son, and placed him on the wood that was on the altar, and stretched out his hand to take the knife to kill Isaac, his son.
And I stood before him, and before the prince Mastema, and the Lord said: "He must not harm the boy, nor do anything against him, because I have shown that he fears the Lord."
And I called him from heaven, and said to him: "Abraham, Abraham!" and he was very afraid and said: "Here I am."
And I said to him: "Do not harm the boy, nor do anything against him, because now I have shown that you fear the Lord, and you have not withheld your son, your firstborn, from Me."
And the prince Mastema was ashamed; and Abraham lifted up his eyes and looked, and behold, a ram caught by its horns, and Abraham went and took the ram and offered it as a burnt offering in place of his son.
And Abraham called that place "The Lord sees!" therefore it is said: The Lord sees! This is Mount Zion.
And the Lord called Abraham by name a second time from heaven, and He made us appear and speak with him in the name of the Lord.
And he said: "I have sworn by Myself, said the Lord, because you have done this, and have not withheld your son, your beloved son, from Me, that in blessing I will bless you, and in multiplication I will multiply your descendants as the stars of heaven, and as the sand of the seashore. And your descendants shall inherit the cities of their enemies.
And in your descendants shall all the nations of the earth be blessed. Because you have obeyed My voice, and I have shown to all that you are faithful to Me in everything I told you. Go in peace."
And Abraham returned to his young men, and they arose and went together to Beersheba, and Abraham dwelt at the Well of the Oath.
And he celebrated this festival every year seven days with joy, and he called it the Festival of the Lord in commemoration of the seven days that he went and returned in peace.
And according to this it is written on the heavenly tablets concerning Israel and his descendants that they shall observe this festival seven days with the joy of the festival.