Genesis 34:21-23
34:21 “These men are at peace with us. So let them live in the land and travel freely in it, for the land is wide enough for them. We will take their daughters for wives, and we will give them our daughters to marry.
34:22 Only on this one condition will these men consent to live with us and become one people: They demand that every male among us be circumcised just as they are circumcised.
34:23 If we do so, won’t their livestock, their property, and all their animals become ours? So let’s consent to their demand, so they will live among us.”