God tells Abraham to kill his son, Isaac
1 And it came to pass after these things, that God did tempt Abraham, and said unto him, Abraham: and he said, Behold, here I am.
2 And he said, Take now thy son, thine only son Isaac, whom thou lovest, and get thee into the land of Moriah; and offer him there for a burnt offering upon one of the mountains which I will tell thee of.
God tempted Abraham  by saying,
Take your son, your only son Isaac , the one that you love, and offer him to me as a burnt sacrifice. 
Abraham prepares to kill his son for God
3 And Abraham rose up early in the morning, and saddled his ass, and took two of his young men with him, and Isaac his son, and clave the wood for the burnt offering, and rose up, and went unto the place of which God had told him.
4 Then on the third day Abraham lifted up his eyes, and saw the place afar off.
5 And Abraham said unto his young men, Abide ye here with the ass; and I and the lad will go yonder and worship, and come again to you.
6 And Abraham took the wood of the burnt offering, and laid it upon Isaac his son; and he took the fire in his hand, and a knife; and they went both of them together.
Abraham saddles his ass while his son Isaac gathers firewood.
Then he piles the wood on Isaac's back, took fire and a knife, and marches off to the place where God had chosen.
7 And Isaac spake unto Abraham his father, and said, My father: and he said, Here am I, my son. And he said, Behold the fire and the wood: but where is the lamb for a burnt offering?
Isaac asked his father,
Where is the lamb for the burnt offering?
8 And Abraham said, My son, God will provide himself a lamb for a burnt offering: so they went both of them together.
God will provide a lamb.
9 And they came to the place which God had told him of; and Abraham built an altar there, and laid the wood in order, and bound Isaac his son, and laid him on the altar upon the wood.
10 And Abraham stretchedforth his hand, and took the knife to slay his son.
When they arrived at the place God selected for the sacrifice, Abraham built and altar, arranged the wood, tied Isaac down, and prepared to kill his son with his knife.
11 And the angel of the LORD called unto him out of heaven, and said, Abraham, Abraham: and he said, Here am I.
12And he said, Lay not thine hand upon the lad, neither do thou any thing unto him: for now I know that thou fearest God, seeing thou hast not withheld thy son, thine only son from me.
Just as Abraham was about to kill Isaac (as God commanded), he heard an angel's voice calling out from heaven, saying
Don't kill the boy.
Now I know that you fear God, since you were willing to kill your only son for me. 
13 And Abraham lifted up his eyes, and looked, and behold behind him a ram caught in a thicket by his horns: and Abraham went and took the ram, and offered him up for a burnt offering in the stead of his son.
Abraham then saw a ram caught in a thicket.
He caught the ram and offered it to God instead of his son.
14 And Abraham called the name of that place Jehovahjireh: as it is said to this day, In the mount of the LORD it shall be seen.
15 And the angel of the LORD called unto Abraham out of heaven the second time,
Abraham called the name of that place Jehovahjireh. 
God blesses Abraham for his willingness to kill his son
16 And said, By myself have I sworn, saith the LORD, for because thou hast done this thing, and hast not withheld thy son, thine only son:
17 That in blessing I will bless thee, and in multiplying I will multiply thy seed as the stars of the heaven, and as the sand which is upon the sea shore; and thy seed shall possess the gate of his enemies;
18And in thy seed shall all the nations of the earth be blessed; because thou hast obeyed my voice.
God swears to himself, saying
I swear to myself that since you were willing to kill your only son for me,
I will bless you by making your offspring as numerous as the stars and the sand of the sea shore. 
They will possess the land of their enemies, and all of the nations will be blessed in them.
Because you obeyed my voice (by your willingness to kill your son for me.)
Rebekah is Abraham's great-niece
19 So Abraham returned unto his young men, and they rose up and went together to Beersheba; and Abraham dwelt at Beersheba.
Abraham returned to Beersheba.
20 And it came to pass after these things, that it was told Abraham, saying, Behold, Milcah, she hath also born children unto thy brother Nahor;
21 Huz his firstborn, and Buz his brother, and Kemuel the father of Aram,
When he arrived, he was told that his brother Nahor and his wife, Milcah, had some children.
22 And Chesed, and Hazo, and Pildash, and Jidlaph, and Bethuel.
One of them was named Bethuel.
23 And Bethuel begat Rebekah: these eight Milcah did bear to Nahor, Abraham's brother.
24 And his concubine, whose name was Reumah, she bare also Tebah, and Gaham, and Thahash, and Maachah.
And Betheul had a daughter named Rebekah.