20 Behold, I stand at the door, and knock: if any man hear my voice, and open the door, I will come in to him, and will sup with him, and he with me.
7 Lift up your heads, O ye gates; and be ye lift up, ye everlasting doors; and the King of glory shall come in.
8 Who is this King of glory? The LORD strong and mighty, the LORD mighty in battle.
9 Lift up your heads, O ye gates; even lift them up, ye everlasting doors; and the King of glory shall come in.
10 Who is this King of glory? The LORD of hosts, he is the King of glory. Selah.
-In Psalm 24, the Holy Spirit inspires powerful language talking about the Lord. In Revelation 3, the Lord speaks of Himself. Both sections of scripture tell of the Lord doing something as simple as entering a door, but notice the difference in tone between the two; as you read them, you can almost hear the Lord whispering and the Spirit SHOUTING. The Lord speaks of Himself with great humility and meekness, while the Spirit tells with great boldness how mighty and special the Lord is. This principle illustrates one of the great stumbling blocks to a person’s faith. Many people are willing to follow the Conquering King described in the Psalm, but they must first accept the Lowly Servant that came to give His life a ransom for many.