Genesis 12:13

12:13 So tell them you are my sister so that it may go well for me because of you and my life will be spared on account of you.”

Genesis 20:2

20:2 Abraham said about his wife Sarah, “She is my sister.” So Abimelech, king of Gerar, sent for Sarah and took her.

Genesis 20:12

20:12 What’s more, she is indeed my sister, my father’s daughter, but not my mother’s daughter. She became my wife.

Genesis 24:59-60

24:59 So they sent their sister Rebekah on her way, accompanied by her female attendant, with Abraham’s servant and his men. 24:60 They blessed Rebekah with these words:

“Our sister, may you become the mother of thousands of ten thousands!

May your descendants possess the strongholds of their enemies.”

Genesis 25:20

25:20 When Isaac was forty years old, he married Rebekah, the daughter of Bethuel the Aramean from Paddan Aram and sister of Laban the Aramean.

Genesis 28:9

28:9 So Esau went to Ishmael and married Mahalath, the sister of Nebaioth and daughter of Abraham’s son Ishmael, along with the wives he already had.

Genesis 30:1

30:1 When Rachel saw that she could not give Jacob children, she became jealous of her sister. She said to Jacob, “Give me children or I’ll die!”

Genesis 30:8

30:8 Then Rachel said, “I have fought a desperate struggle with my sister, but I have won.” So she named him Naphtali.

Genesis 34:13-14

34:13 Jacob’s sons answered Shechem and his father Hamor deceitfully when they spoke because Shechem had violated their sister Dinah. 34:14 They said to them, “We cannot give our sister to a man who is not circumcised, for it would be a disgrace to us.