כִּ֤י עֵֽינֵיכֶם֙ הָֽרֹאֹ֔ת אֶת־כָּל־מַעֲשֵׂ֥ה יְהוָ֖ה הַגָּדֹ֑ל אֲשֶׁ֖ר עָשָֽׂה׃
너희가 여호와의 행하신 이 모든 큰 일을 목도하였느니라
Ibn Ezra
it is not your children The conclusion of this sentence is “your own eyes have seen” [: 7]. In other words: These miracles are not for the future, to be seen by your children; but rather, you yourselves have seen them.
Ibn Ezra
on their feet meaning, which existed on their account — or, perhaps the term is to be taken literally. After having seen all of these things with your own eyes, take care to keep God ’s commandments.
Rabbeinu Bahya
If you are fortunate you will appreciate that our verse tries to teach us something analogous and that is why the wording הכהן הגדול has been selected to describe the High Priest. It is reminiscent of Deut. 11,7 את כל מעשה ה' הגדול אשר עשה, “all the great work of Hashem which He did;” The word גדול has first and foremost a qualitative dimension rather than being a description of physical properties possessed by the High Priest; our sages in Horiot 12 understood the second half of our verse in which the Torah directs that the High Priest must not leave his head unshorn, etc., as a direct corollary of his function of being the people’s representative before the Lord. They understand the restrictions mentioned here as applying also to the two people always flanking the High Priest. There is some disagreement as to whether the words לא יפרום, that the High Priest must not rend his garments (as a sign of mourning for a relative who has died), refer only to the visible outer garments or also to the garments covering his skin. The disagreement of the scholars as to the halachah in that instance reflects 1) the view that only people of a lesser stature than he, i.e. ordinary priests, are allowed to rend their garments in acknowledging their state of mourning. 2) the other opinion which holds that the High Priest must tear an inner garment which is not visible. This would be an allusion that the procedure where it is visible is aimed at people of a spiritually lower level, whereas seeing that the High Priest is in a class by himself, addressing himself only to the highest spiritual level, Hashem, does not display such signs of mourning to his peers but gives vent to the emotion of mourning nonetheless by rending his inner garments.