Genesis 34:15-17

34:15 We will give you our consent on this one condition: You must become like us by circumcising all your males. 34:16 Then we will give you our daughters to marry, and we will take your daughters as wives for ourselves, and we will live among you and become one people. 34:17 But if you do not agree to our terms by being circumcised, then we will take our sister and depart.”