וַֽ֠תַּעֲלֶה וַתֵּצֵ֨א מֶרְכָּבָ֤ה מִמִּצְרַ֙יִם֙ בְּשֵׁ֣שׁ מֵא֣וֹת כֶּ֔סֶף וְס֖וּס בַּחֲמִשִּׁ֣ים וּמֵאָ֑ה וְ֠כֵן לְכָל־מַלְכֵ֧י הַחִתִּ֛ים וּלְמַלְכֵ֥י אֲרָ֖ם בְּיָדָ֥ם יֹצִֽאוּ׃ (פ)
애굽에서 내어 올린 병거는 하나에 은 육백 세겔이요 말은 일백오십 세겔이라 이와 같이 헷 사람의 모든 왕과 아람 왕들을 위하여도 그 손으로 내어왔더라
Guide for the Perplexed
You must know that in Hebrew the collective noun denoting animals used for riding is “mercabah.” Instances of this noun are not rare. “And Joseph made ready his chariot” (merkabto) (Gen. 46:29); “in the second chariot” (be-mirkebet) (ib. 41:43); “Pharaoh’s chariots” (markebot) (Exod. 15:4). The following passage especially proves that the Hebrew merkabah denotes a collection of animals: “And a merkabah came up and went out of Egypt for six hundred shekels of silver, and a horse for an hundred and fifty” (1 Kings 10:21). Hence we may learn that mercabah denotes here four horses. Therefore I think that when it was stated, according to the literal sense of the words, that four Ḥayyot (beasts) carry the Throne of Glory, our Sages called this “mercabah” on account of its similarity with the mercabah consisting of four single animals.