John Chrysostom
"By faith Jacob, when dying, blessed each of the sons of Joseph." Here it would be necessary to set forth all his blessings, so that both his faith and his prophecy might be shown more clearly.
"And he worshiped," it says, "upon the top of his staff." Here the Apostle shows that Jacob not only spoke, but so hoped in the future that he showed it by deed.
Since another king was to arise from Ephraim, he says, "and he worshiped upon the top of his staff." That is, already an old man, he bowed before Joseph, expressing the future worship that would be given him by the whole people.
This was already fulfilled in part when his brothers bowed down to him, but it was to be fulfilled afterward through ten generations.
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Do you see how he foretold the future? Do you see what faith the forefathers had, and how they believed in things to come?
The examples given here serve as examples. Some are of patience in sufferings and deprivation of all blessings, as in the cases of Abraham and Abel.
Others are examples of faith that God exists and that there is recompense, as in the case of Noah.
The word "faith" has many meanings. It expresses one thing in one place, and another elsewhere.
Here it means that there will be recompense, that the same thing does not await everyone, and that one must struggle before receiving rewards.