Job 4:3

“Behold, thou hast instructed many, etc.] This is introduced with a “behold”, either as a note of admiration, that such a man, who had instructed others, should act the part he now does; or as a note of attention to Job himself, and all others that should hear and read this, to observe it, and well consider it, and make the proper use of it; or as a note of asseveration, affirming it to be true and certain, notorious and unquestionable, as no doubt it was: Job was the instructor, a great man, and yet condescended to teach and instruct men in the best things, as did also Abraham, David, Solomon, and others; and a good man, and so fit to teach good things, as every good man is, and who,…”

“weak hands-- Isa 35:3; Sa2 4:1.”

“Behold, thou hast instructed many - That is, thou hast instructed many how they ought to bear trials, and hast delivered important maxims to them on the great subject of the divine government. This is not designed to be irony, or to wound the feelings of Job. It is intended to recall to his mind the lessons which he had inculcated on others in times of calamity, and to show him how important it was now that he should reduce his own lessons to practice, and show their power in sustaining himself. Thou hast strengthened the weak hands - That is, thou hast aided the feeble. The hands are the instruments by which we accomplish anything, and when they are weak, it is an indication of…”

“4:3-4 People . . . who were weak were depressed and suffered from low morale (Isa 13:7; 35:3; Ezek 7:17).”

“Behold: Gen 18:19; Pro 10:21, Pro 15:7, Pro 16:21; Isa 50:4; Eph 4:29; Col 4:6 and thou hast: Job 16:5; Deu 3:28; Ezr 6:22; Isa 35:3; Eze 13:22; Luk 22:32, Luk 22:43 Job 4:4”