5. The forementioned son was born to Abram when he was eighty-six years old: but when he was ninety-nine, God appeared to him, and promised him that he Should have a son by Sarai, and commanded that his name should be Isaac; and showed him, that from this son should spring great nations and kings, and that they should obtain all the land of Canaan by war, from Sidon to Egypt. But he charged him, in order to keep his posterity unmixed with others, that they should be circumcised in the flesh of their foreskin, and that this should be done on the eighth day after they were born: the reason of which circumcision I will explain in another place. And Abram inquiring also concerning Ismael, whether he should live or not, God signified to him that he should live to be very old, and should be the father of great nations. Abram therefore gave thanks to God for these blessings; and then he, and all his family, and his son Ismael, were circumcised immediately; the son being that day thirteen years of age, and he ninety-nine. CHAPTER 11. How God Overthrew The Nation Of The Sodomites, Out Of His Wrath Against Them For Their Sins. 1. About this time the Sodomites grew proud, on account of their riches and great wealth; they became unjust towards men, and impious towards God, insomuch that they did not call to mind the advantages they received from him: they hated strangers, and abused themselves with Sodomitical practices. God was therefore much displeased at them, and determined to punish them for their pride, and to overthrow their city, and to lay waste their country, until there should neither plant nor fruit grow out of it. 2. When God had thus resolved concerning the Sodomites, Abraham, as he sat by the oak of Mambre, at the door of his tent, saw three angels; and thinking them to be strangers, he rose up, and saluted them, and desired they would accept of an entertainment, and abide with him; to which, when they agreed, he ordered cakes of meal to be made presently; and when he had slain a calf, he roasted it, and brought it to them, as they sat under the oak. Now they made a show of eating; and besides, they asked him about his wife Sarah, where she was; and when he said she was within, they said they would come again hereafter, and find her become a mother. Upon which the woman laughed, and said that it was impossible she should bear children, since she was ninety years of age, and her husband was a hundred. Then they concealed themselves no longer, but declared that they were angels of God; and that one of them was sent to inform them about the child, and two of the overthrow of Sodom.