Your life shall hang in doubt before you. Night and day you shall be in dread and have no assurance of your life.
One would have thought that enough had been said to possess them with a dread of that wrath of God which is revealed from heaven against the ungodliness and unrighteousness of men. But to show how deep the treasures of that wrath are, and that still there is more and worse behind, Moses, when one would have thought that he had concluded this dismal subject...
Commenting on Deuteronomy 28:45-68
Deu 28:66 “Thy life will be hung up before thee,” i.e., will be like some valued object, hanging by a thin thread before thine eyes, which any moment might tear down (Knobel), that is to say, will be ever hanging in the greatest danger. “Thou wilt not believe in thy life,” i.e., thou wilt despair of its preservation (cf. Job. Deu 24:22).