(22) And the key of the house of David will I lay upon his shoulder . . .--The key of the king's treasure-chambers and of the gates of the palace was the natural symbol of the chamberlain's or vizier's office, and, as in Isaiah 9:6, it was solemnly laid upon the shoulder of the new official, perhaps as representing the burden of the responsibilities of the duties of his office. In the "keys of the kingdom of heaven," in Matthew 16:19, and again in Revelation 3:7, as also in the custom of admitting a Rabbi to his office by giving him a key, we have a reproduction of the same emblem.

So he shall open, and none shall shut . . .--The words paint vividly the supremacy of the office to which Eliakim was to be called. He alone was to decide who was to be admitted into the king's chamber, and for whom the king's treasury was to be opened. In Revelation 3:7, the symbolism is reproduced in its higher application to the King of kings.

Verse 22. - The key of the house of David will I lay upon his shoulder. A key would seem to have been the special badge of the prefect's office, which included the control of the stores (ver. 15), and the general management of the household. It was, perhaps, a part of the form of investiture, that the key should be first laid on the prefect's shoulder and then delivered into his hand. Among the Greeks the priests of Ceres are said to have borne a key on their shoulder, permanently, as a badge of office (Callimach., 'Hymn. ad Cererem,' 1. 45). The reference to this passage in Revelation 3:7 is sufficient to show that Eliakim, the "servant of Jehovah" (ver. 20), is, to a certain extent, a type of Christ; perhaps also of his faithful ministers (Matthew 16:19; John 20:23).

22:15-25 This message to Shebna is a reproof of his pride, vanity, and security; what vanity is all earthly grandeur, which death will so soon end! What will it avail, whether we are laid in a magnificent tomb, or covered with the green sod? Those who, when in power, turn and toss others, will be justly turned and tossed themselves. Eliakim should be put into Shebna's place. Those called to places of trust and power, should seek to God for grace to enable them to do their duty. Eliakim's advancement is described. Our Lord Jesus describes his own power as Mediator, Re 3:7, that he has the key of David. His power in the kingdom of heaven, and in ordering all the affairs of that kingdom, is absolute. Rulers should be fathers to those under their government; and the honour men bring unto their families, by their piety and usefulness, is more to be valued than what they derive from them by their names and titles. The glory of this world gives a man no real worth or excellence; it is but hung upon him, and it will soon drop from him. Eliakim was compared to a nail in a sure place; all his family are said to depend upon him. In eastern houses, rows of large spikes were built up in the walls. Upon these the moveables and utensils were hung. Our Lord Jesus is as a nail in a sure place. That soul cannot perish, nor that concern fall to the ground, which is by faith hung upon Christ. He will set before the believer an open door, which no man can shut, and bring both body and soul to eternal glory. But those who neglect so great salvation will find, that when he shutteth none can open, whether it be shutting out from heaven, or shutting up in hell for ever.And the key of the house of David will I lay upon his shoulder,.... In allusion either to magistrates carrying a key on their shoulder, hanging down from thence, having a hook at one end of it fit for that purpose; or having one embroidered on that part of their garment: or one carried before them by their servants. It regards either the keys of the temple; or rather the key of the king's house, which it was proper should be delivered to him as treasurer and steward of it; the Targum takes in both,

"and I will give the key of the house of the sanctuary, and the government of the house of David, into his hand.''

In the mystical sense, Christ is said to have this key, Revelation 3:7 where the following words are applied to him:

so he shall open, and none shall shut; and he shall shut, and none shall open; all which is expressive of the government of the church being on his shoulders, and of his absolute and uncontrollable power over it; who opens the treasures of his word, of his grace, and of wisdom and knowledge, and communicates them unto, and shuts or hides them from, whom he pleases; who opens and shuts the doors of his church, his house, and lets in, and keeps out, whom he thinks fit; and who also opens and shuts the door of the kingdom of heaven, and introduces into it his own people, and excludes others.