In the passage from Revelation, we see Jesus describing Himself. This letting us know something about himself is a major feature of the book aptly named The Revelation of Jesus Christ.

But the mention in Isaiah doesn't seem to have anything to do with Jesus. Here is the text from Isaiah.

We also find Shebna and Hilkiah mentioned in 2 Kings and in Isaiah 37.

Let's look at some other factors. Hilkiah means portion of Jehovah or my portion is Jehovah. Eliakim means whom God establishes or Whom God will raise up or set up.. Shebna means youth or vigour. There are other clues to be found in careful reading of the text. Notice that in Isaiah 22 Shebna is mentioned as being over the house, but in Isaiah 37 and 2 Kings 18 it clearly states that Eliakim was over the household. In Isaiah 22:20 he uses the phrase "And it shall come to pass in that day". This indicates that the passage is prophetic and points to a future time. Also in the same verse he calls Eliakim 'my servant', a phrase associated with Messiah as mentioned in Isaiah 53 and other places. Next consider that Eliakim is always described as the son of Hilkiah while no genealogy is ever given for Shebna. He is always called Shebna, the Scribe. This whole passage about Shebna and Eliakim is only about them on the surface. This is figurative speech contrasting Jesus the Son of God with Satan the legalist. And the passage is really or prophetically speaking of Messiah being established in the place of Satan. Jesus is being set up by the Father, over the household of God where before it had been under the domain or influence of Satan, who is about to be overthrown with great judgments.

Notice that God says He will lay the key of David on his shoulder. There is another passage in Isaiah where we read about the government on his shoulder

The Key of David sets him over the house of David. Or to use the language of Isaiah 9, it gives him the government of the house of David. As we read in Isaiah 22:21b: "and I will commit thy government into his hand, …."

We said before the key speaks of power and authority. Some commentators say that this is a mantle of authority, and thus we can speak of it being set upon someone's shoulders. So in this view, Isaiah 22 says that, God is saying He will give Jesus the government once held by Satan and give him all power and authority.

But if verse 21a it says " And I will clothe him with thy robe …. So the key may not be an article of clothing. Besides, if it referred to a mantle, like the mantle of Samuel, or of Elijah, then it would rest on both shoulders!

In this case the key is speaking of something required to exercise power and authority. It is not the power and authority itself. Just as a key is required to open or shut a door, the Key of David is required to exercise power and authority. And the clue here is the shoulder. And the key is the Cross which he bore on his shoulder. For it was not till after He went to the cross and rose again that he came and told his followers :"… All power is given unto me in heaven and in earth.

The cross was the wooden altar that the perfect sacrifice was offered upon.

As his feet were nailed to the cross, you could say that the cross is his footstool and also his throne, for because of the Cross, he reigns.

And because he reigns he can extend to the church a promise to rule and reign with him.