Genesis 34:13-17

13But Jacob’s sons answered Shechem and his father Hamor deceitfully because he had defiled their sister Dinah.

14“We cannot do this thing,” they said to them. “Giving our sister to an uncircumcised man is a disgrace to us.

15We will agree with you only on this condition: if all your males are circumcised as we are.

16Then we will give you our daughters, take your daughters for ourselves, live with you, and become one people.

17But if you will not listen to us and be circumcised, then we will take our daughter and go.”