It shall be accomplished before his time - I believe the Vulgate gives the true sense: Antequam dies ejus impleantur, peribit; "He shall perish before his time; before his days are completed."
9. And his branch shall not be green - there shall be no scion from his roots; all his posterity shall fail.
It shall be accomplished before his time - Margin, “cut off.” The image here is that of a tree, which had been suggested in Job 15:30. Here it is followed up by various illustrations drawn from the flower, the fruit, etc., all of which are designed to denote the same thing - that a wicked man will not be permanently prosperous; he will not live and flourish as he would if he were righteous. He will be like a tree that is cut down before its proper time, or that casts its flowers and fruits and brings nothing to perfection. The phrase here literally is, “It shall not be filled up in its time;” that is, a wicked man will be cut off before he has filled up the measure of his days, like a tree that decays and falls before its proper time. A similar idea occurs in Psalm 55:23. “Bloody and deceitful men shall not live out half their days.” As a general fact this is all true, and the observation of the ancient Idumeans was correct. The temperate live longer than the intemperate; the chaste longer than the licentious; he that controls and governs his passions longer than he who gives the reins to them; and he who leads a life of honesty and virtue longer than he who lives for crime. Pure religion makes a man temperate, sober, chaste, calm, dispassionate, and equable in his temper; saves from broils, contentions, and strifes; subdues the angry passions, and thus tends to lengthen out life.
His branch shall not be green - It shall be dried up and withered away - retaining the image of a tree.