Lift up your heads, O ye gates; even lift them up, ye everlasting doors; and the King of glory shall come in.
Lift up your heads. The repetition of Psalms 24:7 is to bring out with greater emphasis the might of the Lord as "the Lord of hosts."
Related Commentaries of Psalms 24:9
Psalms 24:9
9 Lift up your heads, O ye gates; even lift them up, ye everlasting doors; and the King of glory shall come in.