And he gave him the covenant of circumcision: and so he begat Isaac, and circumcised him the eighth day; and Isaac Jacob; and Jacob the twelve patriarchs.
And after this, his brother will come forth, and his hand having laid hold upon Esau's heel; and his name was called Jacob: and Isaak the son of sixty years in her bringing them forth.
By faith Sara also herself received power for the laying down of seed, and brought forth during the time of age, for she deemed him faithful having promised.
And for the sons of Judah, their generations according to their families, according to the house of their fathers, according to the number of names, from the son of twenty years and above, all going forth to war.