Kommentar zu Tehillim 24:9

everlasting portals Portals whose sanctity is everlasting.

Lift up your head, O ye gates: – The repetition is according to the idiom of the language; he repeats the thought with a change of terms. And the learned Rabbi Abraham ben Ezra wrote that this second verse hints to the return of the Glory at the coming of the Redeemer. And he expounds

Yea, lift up, ye everlasting doors – – (supplying) your heads, for your heads, which he has mentioned, is to be understood again (lit. stands in the place of two), according to the idiom of the language,

that the King of Glory may come in. –