Jubilees 17 - 18

15. And it happened in the seventh week, in the first year thereof, in the first month of this jubilee, on the twelfth of this month, there was a word in the heavens concerning Abraham, that he was a believer in all that the Lord told him, and that he loved him, because in all temptations he was faithful,

16. And the prince Mastama approached and said before God: "Behold Abraham loves Isaac his son, and esteems him more than all other things; say that he should bring him as a burnt offering on the altar and thou wilt see if he will do this word, and thou wilt know if he is a believer in everything with which thou triest him." (This might remind you of the Book of Job where Satan approaches God to complain about Job.)

17. And the Lord knew that Abraham was a believer in all trials which he spoke to him; for he had tried him in his country, and in the strange land, and had tried him with the wealth of kings, and had tried him again with his wife in that she was torn from him, and with the circumcision, and had tried him with Ishmael and Hagar his maid, when he sent them away, and in all in which he had tried him he was found faithful, and his soul did not become impatient, nor
did he hesitate to do it, for he was faithful and a lover of God.

Chapter XVIII. 1. And the Lord said to Abraham, "Abraham." And he said to him, "Behold, O Lord, here I am."

2. And he said to him: "Take thy son Isaac whom thou lovest, and go into the high land, and take him upon one of the hills which I will show thee."

3. And he arose in the morning from there and saddled his ass, and took two young men with him, and Isaac his son, and split the wood for' a sacrifice, and he came to the place on the third day, and saw the place from afar.

Day 12 from verse 15 then day 13, and a third day, day 14.

 4. And he came to a well of water, and he said to the young men: "Remain here with the ass, and I and the boy will go on and will worship, and after worshipping will return to you."

5. And he took the wood for the sacrifice and put it upon the shoulders  of his son Isaac (Like Christ carrying his cross) and he took in his hands the fire and knife, and the two went together to that place.

6. And Isaac said to his father: "My father."

7. And he said to him:" Behold, here I am, my son."

8. And he said, "Behold here is the fire, and the knife, and the wood; but where, my father, is the sheep for the sacrifice?"

9. And he said: "The Lord will show me the sheep for the sacrifice, my son."

 10. And he came to the place of the hill of the Lord,  (Why is this called, "the hill of the Lord". Perhaps this is the same hill that Jesus was crucified upon.) and he built an altar and laid the wood upon the altar, and tied Isaac his son and placed him upon tile wood over the altar, and he stretched out his hands to take the knife to sacrifice Isaac.

11. And I stood before him [God] and before the prince Mastema, and the Lord said: "Tell him not to lay his hand upon the boy and to do him no harm; for I know that he fears the Lord."

12. And the Lord called to him from heaven and said to him: "Abraham! Abraham!" and he was frightened and said: "Behold, here I am."

13. And he said to him: "Do not lay thy hands upon the boy, and do him no harm. for now I know that thou fearest the Lord, and hast not spared from me thy first-born son.

14 And the prince Mastema was confounded; and Abraham lifted up his eyes and looked, and behold a ram held fast with his horns,

15. And Abraham went and took the ram and brought him as a sacrifice in the place of his son Isaac.

16. And Abraham called this place "The Lord seeth," so that it is said "The Lord saw it" for Mount Zion.

17. And the Lord called Abraham by name a second time from heaven as he had appeared to us that we should speak to him in the name of the Lord.

This 'second time' was probably the next day. The 15th of Abib, a Holiday. It would then be on this High Sabbath that God spoke to Abraham as follows;

18. And he said: "By my head, I swear, saith the Lord, because thou hast done this thing and hast not spared from me thy firstborn son whom thou lovest, therefore I will surely bless thee and will surely increase thy head like the stars of heaven and like the sand of the shore of the sea.

19. And thy seed shall inherit the cities of their enemy, and in thy seed shall be blessed all the nations of the earth, for this that thou hast listened to my voice and hast shown unto all that thou art faithful unto me in all that I say to thee; go in peace."

20. And Abraham went to his young men, and they arose and went together to Beer-Sheba, and Abraham dwelt near the well of the oath; and he celebrated this festival in all the years, seven days in joy, and called it "the festival of the Lord," according to the seven days in which he had gone and returned in peace.