Romans 4:11

And he received the sign of circumcision, a seal of the righteousness of the faith which he had while in uncircumcision; that he might be father of all who believe while in uncircumcision, that the righteousness might be reckoned to them;

Romans 4:19-20

And, being not weakened in faith, he attentively considered his own body already dead (he being about a hundred years old), and the deadness of Sarah's womb;

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