VII. The weakness of the Chaldeans, and their inability to make head against this threatening destroying force. When God employed them against other nations they had spirit and strength to act offensively, and went on with admirable resolution, conquering and to conquer; but now that it comes to their turn to be reckoned with all their might and courage are gone, their hearts fail them, and none of all their men of might and mettle have found their hands to act so much as defensively. They are called upon here to prepare for action, but it is ironically and in an upbraiding way (v. 11): Make bright the arrows, which have grown rusty through disuse; gather the shields, which in a long time of peace and security have been scattered and thrown out of the way (v. 12); set up the standard upon the walls of Babylon, upon the towers on those walls, to summon all that owed suit and service to that mother-city, now to come in to her assistance; let them make the watch as strong as they can, and appoint the sentinels to their respective posts, and prepare ambushes for the reception of the enemy. This intimates that they would be found very secure and remiss, and would need to be thus quickened (and they were so to such a degree that they were in the midst of their revels when the city was taken), but that all their preparations should come to no purpose. Whoever will may call them to it, but they shall have no heart to come at the call, v. 29. The whole land shall tremble, and sorrow (a universal consternation) shall seize upon them; for they shall see both the irresistible arm and the irreversible counsel and decree of God against them. They shall see that God is making Babylon a desolation, and therein is performing what he has purposed; and then the mighty men of Babylon have forborne to fight, v. 30. God having taken away their strength and spirit, so that they have remained in their holds, not daring so much as to peep forth, the might both of their hearts and of their hands fails; they become as timorous as women, so that the enemy has, without any resistance, burnt her dwelling-places and broken her bars. It is to the same purport with v. 56-58. When the spoiler comes upon Babylon her mighty men, who should make head against him, are immediately taken, their weapons of war fail them, every one of their bows is broken and stands them in no stead. Their politics fail them; they call councils of war, but their princes and captains, who sit in council to concert measures for the common safety, are made drunk; they are as men intoxicated through stupidity or despair; they can form no right notions of things; they stagger and are unsteady in their counsels and resolves, and dash one against another, and, like drunken men, fall out among themselves. At length they sleep a perpetual sleep, and never awake from their wine, the wine of God's wrath, for it is to them an opiate that lays them into a fatal lethargy. The walls of their city fail them, v. 58. When the enemy had found ways to ford Euphrates, which was thought impassable, yet surely, think they, the walls are impregnable, they are the broad walls of Babylon or (as the margin reads it), the walls of broad Babylon. The compass of the city, within the walls, was 385 furlongs, some say 480, that is, about sixty miles; the walls were 200 cubits high, and fifty cubits broad, so that two chariots might easily pass by one another upon them. Some say that there was a threefold wall about the inner city and the like about the outer, and that the stones of the wall, being laid in pitch instead of mortar (Gen. xi. 3), were scarcely separable; and yet these shall be utterly broken, and the high gates and towers shall be burnt, and the people that are employed in the defence of the city shall labour in vain in the fire; they shall quite tire themselves, but shall do no good.