וְהָי֣וּ הַכְּרֻבִים֩ פֹּרְשֵׂ֨י כְנָפַ֜יִם לְמַ֗עְלָה סֹכְכִ֤ים בְּכַנְפֵיהֶם֙ עַל־הַכַּפֹּ֔רֶת וּפְנֵיהֶ֖ם אִ֣ישׁ אֶל־אָחִ֑יו אֶל־הַכַּפֹּ֔רֶת יִהְי֖וּ פְּנֵ֥י הַכְּרֻבִֽים׃
און די כּרובֿים זאָלן אױסשפּרײטן די פֿליגלען צו דער הײך, שירעמענדיק מיט זײערע פֿליגלען איבער דעם דעק, מיט זײערע פּנימער אײנער אַקעגן אַנדערן; צום דעק צו זאָלן זײַן די פּנימער פֿון די כּרובֿים.
Rashi
פרשי כנפים [AND THE CHERUBIM SHALL] SPREAD THEIR WINGS [ON HIGH] — i. e. that you shall not make their wings touching the body but spreading on high slightly above but almost on the same level with their heads so that the hollow space between the wings and the cover shall be ten handbreadths, as it is explained in Treatise Sukkah 5b.
Chizkuni
פורשי כנפים, “spreading wings;” to make them look like birds; the reason for this was that birds are viewed as the cleanest creatures (compare what we wrote on verse 18),
Da'at Zekenim
פורשי כנפים מעלה, “spreading their wings upwards;” the wings were spread above their heads. This was to symbolise humility. [If the head were to be above the wings, this would be a sign of arrogance; this is why Jews always cover their heads when under an open sky. Ed.]