(English Reading starts at 2:40)

Genesis 18:9-15

9 They said to him, “Where is your wife Sarah?” And he said, “There, in the tent.” 10 Then one said, “I will surely return to you in due season, and your wife Sarah shall have a son.” And Sarah was listening at the tent entrance behind him. 11 Now Abraham and Sarah were old, advanced in age; it had ceased to be with Sarah after the manner of women. 12 So Sarah laughed to herself, saying, “After I have grown old, and my husband is old, shall I have pleasure?”

13 The Lord said to Abraham, “Why did Sarah laugh, and say, ‘Shall I indeed bear a child, now that I am old?’ 14 Is anything too wonderful for the Lord? At the set time I will return to you, in due season, and Sarah shall have a son.” 15 But Sarah denied, saying, “I did not laugh”; for she was afraid. He said, “Oh yes, you did laugh.”

Genesis 21:2-7

2 Sarah conceived and bore Abraham a son in his old age, at the time of which God had spoken to him. 3 Abraham gave the name Isaac to his son whom Sarah bore him. 4 And Abraham circumcised his son Isaac when he was eight days old, as God had commanded him. 5 Abraham was a hundred years old when his son Isaac was born to him. 6 Now Sarah said, “God has brought laughter for me; everyone who hears will laugh with me.” 7 And she said, “Who would ever have said to Abraham that Sarah would nurse children? Yet I have borne him a son in his old age.”