וַיֵּרָ֖א לַכְּרֻבִ֑ים תַּבְנִית֙ יַד־אָדָ֔ם תַּ֖חַת כַּנְפֵיהֶֽם׃
Et chez les chérubins apparut la forme d’une main d’homme, sous leurs ailes.
Rashi
And human hands were beneath their wings As the Targum paraphrases: to pick up coals of fire with them, etc. Likewise, we find in this Book (10:7): “And the cherub stretched forth his hand, etc. to the fire that was between the cherubim, and he picked it up and gave it to the hands of the one dressed in linen.” And so, [in the verse] after it, “And there appeared to the cherubim the form of a human hand, etc.” The human hands pick up the fire and give it to the cherub, and the cherub [gives it] to the messenger, in order [to allow] the coals to cool off [as they pass] from hand to hand, to mitigate Israel’s punishment.
Ibn Ezra
will be stood up a verb in the passive, hof‘al form. Normally the yod would be vocalized with a qubbuṣ ; but the subsequent guttural letter causes the vowel to be lengthened to a qamaṣ qaṭan . Compare “all his substance shall be forfeited” [Ezra 10:8].