And Moses' father-in-law said. He does not absolutely condemn the whole system which Moses had before adopted, after the manner of morose, or froward, or ambitious men who, by carping at some trifle, obscure the noble deeds of others; but by seeking only to correct a part of it, he detracts not from the just praise of Moses, and leaves the power which God had conferred upon him untouched. Herein his moderation is worth observing, for he does not abuse this pretext of a particular error, so as to upset the due order of things; but only advises Moses how he may usefully execute the office which God had conferred upon him.

And Moses's father in law said unto him,.... Having observed what he did, and heard his answer to the question he put to him:
the thing that thou doest is not good; not meaning that it was not morally good, or that it was morally evil; for it was certainly a good thing to inquire of the mind and will of God for the people, and to hear and decide matters in controversy between them, and do justice to both parties; but it was not good for the health of Moses; it was not commodious and convenient for him; it was not for his bodily welfare; it was too much for him, as he explains himself in the next verse.

Moses' father-in-law said unto him, The thing . . . is not good--not good either for Moses himself, for the maintenance of justice, or for the satisfaction and interests of the people. Jethro gave a prudent counsel as to the division of labor [Exodus 18:21-22], and universal experience in the Church and State has attested the soundness and advantages of the principle.

Not good - Not convenient either for thee or them.