Job 30:2 - Joseph Benson’s Commentary on the Old and New Testaments

Yea, whereto might their hands profit me? Nor was it strange that I did, or might refuse to take them into any of my meanest services, being utterly impotent and unfit for any business; in whom old age was perished Who were grown no wiser for being old. Or, rather, who had so wasted their strength and spirits by their evil courses, that when they came to old age they were debilitated, feeble, and useless for any labour. Accordingly, Houbigant interprets the clause, When all their health or strength was worn out; and others render it, In whom vigorous age was perished; that is, who were grown useless for service. For the word כלח, chelach, here rendered old age, is used only here and Job 5:26, where also it may be so rendered, Thou shalt come to thy grave in a vigorous, or mature age, having the vigour of youth even in thy old age, and until thy death, as Moses had. And if this word do signify old age, yet it signifies not every, but only a flourishing and healthful old age; as the Hebrews note, and the word may seem to imply; whence the LXX. also render it perfection, namely, of age, and of the endowments belonging to age.