Romans 4:11

And he received the sign of circumcision as a seal of the righteousness of the faith which he had in uncircumcision: that he might be the father of all that believe though not circumcised, that righteousness may be imputed to them also:

Romans 4:19-20

And not being weak in faith, he considered not his own body now dead, being about an hundred years old; nor the deadness of Sarah's womb.

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