ה֖וֹי חֲכָמִ֣ים בְּעֵֽינֵיהֶ֑ם וְנֶ֥גֶד פְּנֵיהֶ֖ם נְבֹנִֽים׃
Celakalah mereka yang bijaksana di mata mereka sendiri, dan yang berpengertian menurut pandangan mereka sendiri!
Rashbam
כי רעה נגד פניכם. You have foolish designs in your hearts. The accuracy of this interpretation is reflected by Isaiah 5,21 הוי חכמים בעיניהם ונגד (פניהם) נבונים, “Ah, those who are so wise, in their own opinion, so clever in their own judgment.” Pharaoh was at pains to tell Moses that what he thought was good for the Jews was not good for them at all.
Tur HaArokh
אנשי חיל, “competent people,” people capable of dealing with the masses, i.e. people who have been endowed with numerous qualities, otherwise they would not be equal to the task. Having summed up the nature of such people, Yitro proceeds to list the specific qualities such people must possess in order to carry out their duties satisfactorily. Before referring to such people’s common sense, he mentions that their motivations must be above board, such as their being G’d-fearing, not greedy for money, truthful, etc., but all this is not enough unless they have been endowed with common sense, such as being נבונים. The latter quality need not be spelled out, as it is self-evident. [both Isaiah 5,21, and Jeremiah 4,22, refer to the basic requirement of this “common sense.” It is also the first attribute mentioned by Joseph in his advice to Pharaoh to appoint people who would administer the surplus during the seven bountiful years to come. Genesis Ed.] When reviewing these events in Deuteronomy 1,12, Moses does mention that he had asked the people to furnish him men endowed with common sense in addition to the other attributes as his assistants. [certain details which Moses saw fit to spell out to the common people, Yitro did not have to spell out to his brilliant son-in-law. Ed.] It is also possible that when we read in verse 25 that Moses selected men מכל ישראל, this term already includes that he had narrowed down the selection to the elite of the people, so that he did not need to repeat more than the term אנשי חיל to show that he had taken Yitro’s advice to heart.