First, consider who and what this Holy One is. He is the Lord Jehovah. In the glories of His essence, He is one with the Father. In His personal glories, He is the Lord your Mediator. And in His relative glories, He is your righteousness. For, by virtue of His taking our nature, what He is as Mediator, He is for us. Look at Him again, reader, and take another view of Him in His loveliness; in what He is to His people. This precious scripture says, that He is the Lord our righteousness; that is, by virtue of His Godhead He is our righteousness, in such a sure way, and with such everlasting value and efficacy, as no creature could be. The righteousness His redeemed possess in Him is the righteousness of God and therefore impossible ever to be lost. Sweet and blessed consideration! It seems too great to be believed. And so it would be indeed, if the authority of Jehovah had not stamped it.
And observe, yet further, there is this blessed addition to the account: “He shall be called.” By whom? By every one that knows Him. The poor sinner shall call Him so, who is led to see and feel that he has no righteousness of his own; he shall call Jesus his righteousness. He will call Him so to others and he can call Him so for himself. We can be like that true Israelite whom the prophet describes: “Surely, shall one say, in the Lord have I righteousness and strength.”
God Himself, our Father, can call His dear Son by this glorious name, for it is He who has constituted and appointed Him as the Lord our righteousness. Now, what can you say to this view of Jesus? Is this name of Jesus not most comforting to you? Can any name be as sweet and delightful as that of Jesus the Lord our righteousness? Can we not indeed renounce every other and speak only of His righteousness and His only?