Shebna, the steward over the household of David, is to be replaced by Eliakim the son of Hilkiah. He will have the key of the house of David with power to open and shut. Consider the use of this text by Jesus in Revelation 3:8.
Thus says the Lord GOD of hosts, “Come, go to this steward, to Shebna, who is over the household, and say to him: What have you to do here, and whom have you here, that you have cut out here a tomb for yourself, you who cut out a tomb on the height and carve a dwelling for yourself in the rock? Behold, the LORD will hurl you away violently, O you strong man. He will seize firm hold on you and whirl you around and around, and throw you like a ball into a wide land. There you shall die, and there shall be your glorious chariots, you shame of your master’s house. I will thrust you from your office, and you will be pulled down from your station. In that day I will call my servant Eliakim the son of Hilkiah, and I will clothe him with your robe, and will bind your sash on him, and will commit your authority to his hand. And he shall be a father to the inhabitants of Jerusalem and to the house of Judah. And I will place on his shoulder the key of the house of David. He shall open, and none shall shut; and he shall shut, and none shall open. And I will fasten him like a peg in a secure place, and he will become a throne of honor to his father’s house. (Isaiah 22:15-23 ESV)
D. J. Wiseman comments on this text and a discovery possibly related to it.
The historical background of the prophecies of Isaiah is provided by a number of contemporary records. One inscription, on a rock lintel from a tomb, was read by Avigad in 1953: ‘This is the (the sepulcher of Shebna) yahu who is over the house. There is no silver or gold here, but only (his bones) and the bones of his slave-wife with him. Cursed be the man who breaks this open.’ (Illustrations from Biblical Archaeology, 60)
This tomb inscription was discovered in 1870 by Charles Clermont Ganneau in the village of Silwan. Following the 1967 war David Ussishkin and Gabriel Barkay examined numerous tombs in Silwan. For more information about the inscription, see Lost Treasures of the Bible by Fant and Reddish (154-157).