וַיֹּ֣אמֶר אֵלַ֔י מָ֥ה אַתָּ֖ה רֹאֶ֑ה וָאֹמַ֗ר אֲנִ֤י רֹאֶה֙ מְגִלָּ֣ה עָפָ֔ה אָרְכָּהּ֙ עֶשְׂרִ֣ים בָּֽאַמָּ֔ה וְרָחְבָּ֖הּ עֶ֥שֶׂר בָּאַמָּֽה׃
At sinabi niya sa akin, “Ano ang nakikita mo?” At sinabi ko, “Nakakakita ako ng isang balumbong lumilipad; ang haba nito ay dalawampung siko, at ang lapad nito ay sampung siko.”
Rashi
[The scroll] is now coming forth from the Holy of Holies, from before the Shechinah, to walk to and fro upon the face of the entire land; this is the meaning of “its length is twenty, and its width is ten” - as the measure of the entrance to the Temple court and the Temple, through which it shall emerge.
Chizkuni
כתועפות, like the lofty horns;” the construction of this word implies that there is more than one of these horns. Our author cites Zecharyah 5,2 as a parallel, מגלה עפה, “a flying scroll.” The horns of the Reem, are twice as strong as ordinary horns. Although there is no known animal nowadays that is called Reem, the Torah uses the mythical animal as an example of this creature possessing strong horns. People in Moses’ time were still familiar with that species.