וָאֶרְאֶ֗ה וְהִנֵּ֤ה אֶל־הָרָקִ֙יעַ֙ אֲשֶׁר֙ עַל־רֹ֣אשׁ הַכְּרֻבִ֔ים כְּאֶ֣בֶן סַפִּ֔יר כְּמַרְאֵ֖ה דְּמ֣וּת כִּסֵּ֑א נִרְאָ֖ה עֲלֵיהֶֽם׃
我觀看，看哪，在基路伯頭頂上的穹蒼之上，有一樣東西，形狀好像藍寶石，樣子好像寶座，顯現在他們上方。
Rashi
over the heads of the cherubim Over the heads of the four living beings of the Chariot. In this chapter, he switches over to calling them [all] cherubim because the face of the ox was transformed into the face of a cherub, as it is written in this chapter. Our Rabbis said (Chag. 13b): Ezekiel begged for mercy and transformed it to a cherub. He said before Him, “Master of the world, an accuser cannot become a defender.”