Genesis 34:14-16

Young's Literal Translation

¹⁴ and say unto them, `We are not able to do this thing, to give our sister to one who hath a foreskin: for it [is] a reproach to us.

¹⁵ `Only for this we consent to you; if ye be as we, to have every male of you circumcised,

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;