Every boy born into your family from now on, must have that operation when they are 8 days old. Every man slave worker you got from somewhere else who lives in your camp has to have that ceremony too. Every boy born into a slave family must have that operation when they are 8 days old. And so, every man and boy in your camp must have the mark of that operation on their bodies. Abraham, those marks show that you and I made this promise together, a promise that will be true forever.