Genesis 16:2

16:2 So Sarai said to Abram, “Since the Lord has prevented me from having children, have sexual relations with my servant. Perhaps I can have a family by her.” Abram did what Sarai told him.

Genesis 19:31

19:31 Later the older daughter said to the younger, “Our father is old, and there is no man anywhere nearby to have sexual relations with us, according to the way of all the world.

Genesis 24:16

24:16 Now the young woman was very beautiful. She was a virgin; no man had ever had sexual relations with her. She went down to the spring, filled her jug, and came back up.

Genesis 26:10

26:10 Then Abimelech exclaimed, “What in the world have you done to us? One of the men might easily have had sexual relations with your wife, and you would have brought guilt on us!”

Genesis 38:8-9

38:8 Then Judah said to Onan, “Have sexual relations with your brother’s wife and fulfill the duty of a brother-in-law to her so that you may raise up a descendant for your brother.” 38:9 But Onan knew that the child would not be considered his. So whenever he had sexual relations with his brother’s wife, he withdrew prematurely so as not to give his brother a descendant.

Genesis 38:26

38:26 Judah recognized them and said, “She is more upright than I am, because I wouldn’t give her to Shelah my son.” He did not have sexual relations with her again.