And the same says David again:
Lift up your gates, ye rulers; and be ye lift up, ye everlasting gates, and the King of glory shall come in.
For the everlasting gates are the heavens. But because the Word descended invisible to created things, He was not made known in His descent to them. Because the Word was made flesh, He was visible in His ascension; and, when the powers saw Him, the angels below cried out to those who were on the firmament: Lift up your gates; and be ye lift up, ye everlasting gates, that the King of glory may come in. And when they marvelled and said:
Who is this? those who had already seen Him testified a second time: The Lord strong and mighty, he is the King of glory.