Jeremiah 46:7

The Prophet again meets those doubts which might have possessed the minds of the godly, so as to prevent them to receive this prophecy in faith and with due reverence: for we have said, that when our thoughts are occupied with external things, the power of God is disregarded. When, therefore, we speak of some impregnable kingdom, it does not come into our minds, that all strongholds are of no account with God. It was therefore necessary highly to extol the power of God, when the Prophets spoke of his judgments: otherwise the flesh, as we have stated, would have said, “They who are well fortified must be free from evils, and as it were beyond the reach of weapons, and hence there is nothing for them to fear.” And it is with this false imagination that the proud deceive themselves, for they set up their forces, their auxiliaries, and all the things which they deem, according to the judgment of the flesh, as sufficient to protect their safety. Titus it happens, that they heedlessly disregard all threatenings, even because they think that the subsidies which they have are so many fortresses against all attacks.

It is for this purpose that the Prophet now says, Who is this that as a lake rises, or swells, as rivers are moved, or, whose waters are agitated ? But he speaks according to the common judgment of men, for the very sight could not but fill men with fear; and so the Jews could never have thought that possible which the Prophet here asserts. He then, as it were, introduces them all as anxiously inquiring according to their own judgment, Who is this? as though Pharaoh was not a mortal, but something above human. For the drift of the question is this, that Pharaoh was as it were exempted from the common condition of men, because his power increased like a river rising or swelling; and its waters, he says, make a noise