Genesis 34:19

16 then we have given our daughters to you, and your daughters we take to ourselves, and we have dwelt with you, and have become one people;

17 and if ye hearken not unto us to be circumcised, then we have taken our daughter, and have gone.`

18 And their words are good in the eyes of Hamor, and in the eyes of Shechem, Hamor`s son;

19 and the young man delayed not to do the thing, for he had delight in Jacob`s daughter, and he is honourable above all the house of his father.

20 And Hamor cometh -- Shechem his son also -- unto the gate of their city, and they speak unto the men of their city, saying,

21 `These men are peaceable with us; then let them dwell in the land, and trade [in] it; and the land, lo, [is] wide before them; their daughters let us take to ourselves for wives, and our daughters give to them.

22 `Only for this do the men consent to us, to dwell with us, to become one people, in every male of us being circumcised, as they are circumcised;