Genesis 34:13-17

13Because of the bad thing that Shechem had done to Dinah, Jacob's sons decided to deceive him. And they deceived his father Hamor too.

14They said, ‘We cannot give our sister to a man who has not been circumcised. We would be ashamed to do this.

15If you want to marry Dinah, you must do one thing. You must circumcise all your males. Then you will become like us and we will agree for you to marry Dinah.

16Then we will give you our daughters so that your men can marry them. And our men will marry your daughters. We will live among you, so that we become one people with you.

17But your men must agree to be circumcised. If not, we will take our sister with us and we will leave this place.’