Therefore it is of faith so that it might be according to grace; for the promise to be made sure to all the seed, not only to that which is of the Law, but to that also which is of the faith of Abraham, who is the father of us all

And not being weak in faith, he did not consider his own body already dead (being about a hundred years old) or the deadening of Sarah's womb.

For this is the word of promise: "At this time I will come and Sarah shall have a son."

And I am sure that when I come to you, I shall come in the fullness of the blessing of the gospel of Christ.