Job hath spoken without knowledge - There is no good in arguing with a self-willed, self-conceited man. Job has spoken like a man destitute of wisdom and discretion.

Job hath spoken without knowledge,.... Not that Job was an ignorant man, either in things natural or divine; but in this point, about the chastening hand of God upon him, he had said some things which betrayed lack of knowledge, as in Job 34:5;
and his words were without wisdom; Job was not destitute of human wisdom, nor of spiritual wisdom, but no man is wise at all times; some things had dropped from him which savoured of folly and ignorance, and which he afterwards was convinced of, and confessed with shame, Job 40:4; being charged by the Lord himself with what he is here by Elihu, Job 38:2; and it may be observed, that Elihu does not charge Job with being a wicked man, as his three friends did, but as having spoken unadvisedly with lips, under his chastening circumstances, and which he labours to convince him of.