It was by faith that he sojourned in the promised land, as in a foreign country, residing in tents, as did Isaac and Jacob who were co-heirs with him of the same promise;

It was by faith, when Abraham was put to the test, that he sacrificed Isaac, he was ready to sacrifice his only son, although he had received the promises

and had been told that it is through Isaac that your offspring shall be reckoned ??19 for he considered that God was able even to raise men from the dead. Hence he did get him back, by what was a parable of the resurrection.

It was by faith that Isaac blessed Jacob and Esau in connexion with the future.