But God told Abraham, "Do not be upset over the boy and your servant wife. Do just as Sarah says, for Isaac is the son through whom your descendants will be counted.
1 Then the LORD did exactly what he had promised.
2 Sarah became pregnant, and she gave a son to Abraham in his old age. It all happened at the time God had said it would.
3 And Abraham named his son Isaac.
4 Eight days after Isaac was born, Abraham circumcised him as God had commanded.
5 Abraham was one hundred years old at the time.
6 And Sarah declared, "God has brought me laughter! All who hear about this will laugh with me.
7 For who would have dreamed that I would ever have a baby? Yet I have given Abraham a son in his old age!"
8 As time went by and Isaac grew and was weaned, Abraham gave a big party to celebrate the happy occasion.
9 But Sarah saw Ishmael--the son of Abraham and her Egyptian servant Hagar--making fun of Isaac.
11 This upset Abraham very much because Ishmael was his son.
12 But God told Abraham, "Do not be upset over the boy and your servant wife. Do just as Sarah says, for Isaac is the son through whom your descendants will be counted.
15 When the water was gone, she left the boy in the shade of a bush.
18 Go to him and comfort him, for I will make a great nation from his descendants."
20 And God was with the boy as he grew up in the wilderness of Paran. He became an expert archer,
21 and his mother arranged a marriage for him with a young woman from Egypt.
22 About this time, Abimelech came with Phicol, his army commander, to visit Abraham. "It is clear that God helps you in everything you do," Abimelech said.
24 Abraham replied, "All right, I swear to it!"
27 Then Abraham gave sheep and oxen to Abimelech, and they made a treaty.
28 But when Abraham took seven additional ewe lambs and set them off by themselves,
29 Abimelech asked, "Why are you doing that?"
30 Abraham replied, "They are my gift to you as a public confirmation that I dug this well."
31 So ever since, that place has been known as Beersheba--"well of the oath"--because that was where they had sworn an oath.
32 After making their covenant, Abimelech left with Phicol, the commander of his army, and they returned home to the land of the Philistines.
33 Then Abraham planted a tamarisk tree at Beersheba, and he worshiped the LORD, the Eternal God, at that place.
34 And Abraham lived in Philistine country for a long time.