Hebrews 11:28-31
“Through faith, he kept the Passover and the sprinkling of blood, lest he that destroyed the first-born should touch them. By faith they passed through the Red Sea, as by dry land; which the Egyptians assaying to do, were drowned. By faith, the walls of Jericho fell down, after they had been compassed about seven days. By faith, the harlot Rahab perished not with them that believed not, when she had received the spies with peace.”
1. Paul is wont to establish many things incidently, and is very full of thoughts. For such is the grace of The Spirit. He does not comprehend a few ideas in a multitude of words, but includes great and manifold thought in brevity of expressions. Observe at least how, in the midst of exhortation, and when discoursing about faith, of what a type and mystery he reminds us, whereof we have the reality. “Through faith” (he says) “he kept the Passover and the sprinkling of blood, lest he that destroyed the first-born should touch them.”
But what is “the sprinkling of blood”? A lamb was slain in every household, and the blood was smeared on the door-posts, and this was a means of warding off the Egyptian destruction. If then the blood of a lamb preserved the Jews unhurt in the midst of the Egyptians, and under so great a destruction, much more will the blood of Christ save us, who have had it sprinkled not on the door-posts, but in our souls. For even now also the Destroyer is going about in this depth of night: but let us be armed with that Sacrifice. (He calls the “sprinkling” anointing.) For God has brought us out from Egypt, from darkness, from idolatry.
Although what was done, was nothing, what was achieved was great. For what was done was blood; but was achieved, was salvation, and the stopping, and preventing of destruction. The angel feared the blood; for he knew of what it was a Type; he shuddered, thinking on the Lord's death; therefore he did not touch the door-posts.
Moses said, Smear, and they smeared, and were confident. And you, having the Blood of the Lamb Himself, are you not confident?
2. “By faith, they passed through the Red Sea as by dry land.” Again he compares one whole people with another, lest they should say, we cannot be as the saints.
“By faith” (he says) “they passed through the Red Sea, as by dry land, which the Egyptians assaying to do, were drowned.” Here he leads them also to a recollection of the sufferings in Egypt.
How, “by faith”? Because they had hoped to pass through the sea, and therefore they prayed: or rather it was Moses who prayed. Do you see that everywhere Faith goes beyond human reasonings, and weakness and lowliness? Do you see that at the same time they both believed, and feared punishment, both in the blood on the doors, and in the Red Sea?
And he made it clear that it was [really] water, through those that fell into it, and were choked; that it was not a mere appearance: but as in the case of the lions those who were devoured proved the reality of the facts, and in the case of the fiery furnace, those who were burnt; so here also you see that the same things become to the one a cause of salvation and glory, and to the other of destruction.
So great a good is Faith. And when we fall into perplexity, then are we delivered, even though we come to death itself, even though our condition be desperate. For what else was left [for them]? They were unarmed, compassed about by the Egyptians and the sea; and they must either be drowned if they fled, or fall into the hands of the Egyptians. But nevertheless [He] saved them from impossibilities. That which was spread under the one as land, overwhelmed the others as sea. In the former case it forgot its nature: in the latter it even armed itself against them.
3. “By faith, the walls of Jericho fell down, after they had been compassed about for seven days.” For assuredly the sound of trumpets is not able to throw down stones, though one blow for ten thousand years; but Faith can do all things.
Do you see that in all cases it is not by natural sequence, nor yet by any law of nature that it was changed, but all is done contrary to expectation? Accordingly in this case also all is done contrary to expectation. For inasmuch as he had said again and again, that we ought to trust to the future hopes, he introduced all this argument with reason, showing that not now [only], but even from the beginning all the miracles have been accomplished and achieved by means of it.
“By faith, the harlot Rahab perished not with them that believed not, having received the spies with peace.” It would then be disgraceful, if you should appear more faithless even than a harlot. Yet she [merely] heard what the men related, and immediately believed. Whereupon the end also followed; for when all perished, she alone was preserved. She did not say to herself, I shall be with my many friends. She did not say, Can I possibly be wiser than these judicious men who do not believe—and shall I believe? She said no such thing, but believed what had taken place, which it was likely that they would suffer.
Source: Homilies on the Epistle to the Hebrews (New Advent)