Job 15:33

“He shall shake off his unripe grape as the vine, etc.] Either the wicked man himself shall shake off or lose his substance; or God shall shake off from him all that was dear and valuable to him; or he shall be shaken by one providence or another, just as a vine is shaken by a violent wind and tempest, and its unripe grapes are battered off by an hailstorm, or plucked off by the hand, or drop off through rottenness; so it is signified by this metaphor, that a wicked man should be stripped of his wealth and riches in a sudden manner; or his children should be snatched from him in their youth, before they were well grown up to maturity, and so like the unripe grape; perhaps respect is had to…”

“Images of incompleteness. The loss of the unripe grapes is poetically made the vine tree's own act, in order to express more pointedly that the sinner's ruin is the fruit of his own conduct (Isa 3:11; Jer 6:19).”

“He shall shake off his unripe grape as the vine - The idea here is, that the wicked man shall be like a vine that casts off its grapes while they are yet sour and green, and brings none to perfection; compare the notes at Isaiah 18:5. Scott renders this, “As when the vine her half-grown berries showers, Or poisoned olive her unfolding flowers.” It would seem from this passage that the vine might be so blasted by a hot wind or other cause, as to cast its unripe grapes to the earth. The employment of a figure of this kind to illustrate an idea supposes that such a case was familiar to those who were addressed. It is well known that in the East the grape and the olive might be blasted while in…”

“shake off: Isa 33:9; Rev 6:13 and: Deu 28:39, Deu 28:40 Job 15:34”