Mental maladies shah be added to those sore bodily plagues, and should Deuteronomy 28:29-34 reduce the sufferers to powerlessness before their enemies and oppressors.

Blindness - Most probably mental blindness; compare Lamentations 4:14; Zephaniah 1:17; 2 Corinthians 3:14 ff.

The Lord shall smite thee with madness - שגעון shiggaon, distraction, so that thou shalt not know what to do.

And blindness - עורון ivvaron, blindness, both physical and mental; the גרב garab, (Deuteronomy 28:27), destroying their eyes, and the judgments of God confounding their understandings.

Astonishment - תמהון timmahon, stupidity and amazement. By the just judgments of God they were so completely confounded, as not to discern the means by which they might prevent or remove their calamities, and to adopt those which led directly to their ruin. How true is the ancient saying, Quos Deus vult perdere, prius dementat! "Those whom God is determined to destroy, he first infatuates." But this applies not exclusively to the poor Jews: how miserably infatuated have the powers of the continent of Europe been, in all their councils and measures, for several years past! And what is the result? They have fallen - most deplorably fallen!

Deuteronomy 28:28

The Lord shall smite thee with madness,.... At the calamities befallen them, and through the force of diseases on them:

and blindness; not of body, but of mind; with judicial blindness and hardness of heart:

and astonishment of heart; at the miserable condition they and their families should be in.

In addition to this, there would come idiocy, blindness, and confusion of mind, - three psychical maladies; for although עוּרון signifies primarily bodily blindness, the position of the word between idiocy and confusion of heart, i.e., of the understanding, points to mental blindness here.

The LORD shall smite thee with madness, and blindness, and astonishment of heart:

28:28 Blindness - Of mind, so that they shall not know what to do: Astonishment - They shall be filled with wonder and horror because of the strangeness and soreness of their calamities.

28. madness, and blindness, and astonishment of heart-They would be bewildered and paralyzed with terror at the extent of their calamities.

28:15-44 If we do not keep God's commandments, we not only come short of the blessing promised, but we lay ourselves under the curse, which includes all misery, as the blessing all happiness. Observe the justice of this curse. It is not a curse causeless, or for some light cause. The extent and power of this curse. Wherever the sinner goes, the curse of God follows; wherever he is, it rests upon him. Whatever he has is under a curse. All his enjoyments are made bitter; he cannot take any true comfort in them, for the wrath of God mixes itself with them. Many judgments are here stated, which would be the fruits of the curse, and with which God would punish the people of the Jews, for their apostacy and disobedience. We may observe the fulfilling of these threatenings in their present state. To complete their misery, it is threatened that by these troubles they should be bereaved of all comfort and hope, and left to utter despair. Those who walk by sight, and not by faith, are in danger of losing reason itself, when every thing about them looks frightful.