Psalms 24:7 - Wesley's Explanatory Notes

Lift up — He speaks here of the gates and doors of the temple, which by faith and the spirit of prophecy, he beheld as already built, whose doors he calls Everlasting, not so much because they were made of strong and durable materials, as in opposition to those of the tabernacle, which were removed from place to place. These gates he bids lift up their heads, or tops, by allusion to those gates which have a portcullis, which may be let down or taken up. And as the temple was a type of Christ, and of his church, and of heaven itself; so this place may also contain a representation, either of Christ's entrance into his church, or into the hearts of his faithful people, who are here commanded to set open their hearts and souls for his reception: or of his ascension into heaven, where the saints or angels are poetically introduced as preparing the way, and opening the heavenly gates to receive their Lord and king, returning to his royal habitation with triumph and glory. The king — The Messiah, the king of Israel, and of his church, called the King, or Lord of glory, 1 Corinthians 2:8; James 2:1, both for that glory which is inherent in him, and that which is purchased by him for his members.