Then Abraham took his son Ishmael, and all who were born in his house, and all whom he had bought, every male among the men of his house, and he circumcised the flesh of their foreskin promptly, the very same day, just as God had instructed him.
Now Ephron dwelt in the midst of the sons of Heth. And Ephron responded to Abraham in the hearing of everyone who was entering at the gate of his city, saying:
And their substance, and cattle, and all that they possess, will be ours, if only we will acquiesce to this, and so, in living together, will form one people."
Do not give what is holy to dogs, and do not cast your pearls before swine, lest perhaps they may trample them under their feet, and then, turning, they may tear you apart.