Or HaChaim on Deuteronomy 1:23/אור החיים על דברים א׳:כ״ג

1 וייטב בעיני הדבר, "the matter was pleasing in my eyes." Moses meant that the reason the people advanced for dispatching the spies, i.e. to spy out the country, seemed to be a valid reason in his eyes. Yalkut Shimoni on the relevant verse in Parshat Shlach Lecha explains that the spies wanted to find out where the Canaanites had hidden their valuables, etc. The word בעיני, "in my eyes," with the emphasis on the suffix "my," means that Moses meant to say: "inasmuch as I only have eyes of flesh and blood, I was deceived; anyone who viewed things objectively would have perceived your real intent." Please compare what I have written on this subject in connection with Numbers 13,2.