10 This is my covenant between me and you, that you and your offspring* after you will keep: Every male among you must get circumcised.+

23 Abraham then took Ishʹma·el his son and all the men born in his house and everyone he had purchased with money, every male in the household of Abraham, and he circumcised the flesh of their foreskins on that very day, just as God had spoken with him.+

21 Was not Abraham our father declared righteous by works after he offered up Isaac his son on the altar?+