וְחִבַּרְתָּ֞ אֶת־חֲמֵ֤שׁ הַיְרִיעֹת֙ לְבָ֔ד וְאֶת־שֵׁ֥שׁ הַיְרִיעֹ֖ת לְבָ֑ד וְכָפַלְתָּ֙ אֶת־הַיְרִיעָ֣ה הַשִּׁשִּׁ֔ית אֶל־מ֖וּל פְּנֵ֥י הָאֹֽהֶל׃
I zepniesz pięć opon osobno, a sześć opon osobno; i złożysz we dwoje oponę szóstą z przedniej strony namiotu.
Rashi
התעיף, like “and you shall fold” (Ex. 26:9), which Onkelos renders: ותעיף.
Rabbeinu Bahya
Now to a kabbalistic approach to the matter of the תנינם. You are aware of a tradition that the angels were created on the fifth day [the view of Rabbi Chaninah in Bereshit Rabbah 1,4 as opposed to views that they were created on the second day. Ed.] The “great monsters” are viewed as the four camps in which the שכינה, the presence of G’d, may be found. The Talmud Taanit 31 called these 4 regions מחול [maybe an acrostic. Ed.] These regions serve the purpose of acknowledging G’d’s greatness in song and thanksgiving. This appears based on Judges 5,11 שם יתנו צדקות ה', ”there they will sing the salvations of G’d.” In describing what was created on the fifth day, the Torah mentions ועוף יעופף, which refer to the angels who fly all over. [the word ועוף in that instance is not understood as a noun, i.e. “bird,” but as part of the activity of flying. Ed.] The reason why the angels are compared to עוף יעופף is because already the prophets Isaiah and Ezekiel describe them as having two sets of wings (Isaiah 6,2). The Targum of the word וכפלת, “you will double over, i.e. fold,” in Exodus 26,9 is ותעוף. You know that the Torah calls any bird which flies with two wings עוף. [as opposed to flies, butterflies etc, which have more than 2 wings to fly with. Ed.] It does not matter that the act of flying is of a physical nature or merely a description of the movement by disembodied spiritual creatures such as angels.
Da'at Zekenim
כתועפות ראם לו, “He is for them like the horns of the wild ox.” The word תועפות is equivalent to “double, twice as much.” G–d’s protection for His people has been demonstrated to be at least twice as strong as the strength of the wild ox. The word: וכפלת in Exodus 26,9, is rendered by the Targum as ותעוף. We find that expression also used in Job 11,17: תעופה כבוקר תהיה, “you will shine you will be like morning,” (when the light is especially bright.) Bileam likens G–d to the wild ox in His listening to human beings, just as on other occasions the prophet Hoseah 11,10 likens G–d’s roaring to that of the lion, and the prophet Amos 3,8 also compared Him to a lion, as inspiring fear and dread.