Genesis 34:15-17

WEB_Strongs(i)
  15 H2063 Only on this H225 condition will we consent H2145 to you. If you will be as we are, that every male H4135 of you be circumcised;
  16 H5414 then will we give H1323 our daughters H3947 to you, and we will take H1323 your daughters H3427 to us, and we will dwell H259 with you, and we will become one H5971 people.
  17 H8085 But if you will not listen H4135 to us, to be circumcised, H3947 then we will take H1323 our sister, H1980 and we will be gone."