As we shall see in most of the prophets, we can see Jesus in Isaiah as our Righteousness. This is a major theme in the prophet’s ministry as a whole – to proclaim God’s Righteousness, Judgment and Mercy.
Righteousness, of course, goes hand in hand with Salvation. Jesus is our Salvation too.
“Hearken unto me, my people; and give ear unto me, O my nation: for a law shall proceed from me, and I will make my judgment to rest for a light of the people. My righteousness is near; my salvation is gone forth, and mine arms shall judge the people; the isles shall wait upon me, and on mine arm shall they trust. Lift up your eyes to the heavens, and look upon the earth beneath: for the heavens shall vanish away like smoke, and the earth shall wax old like a garment, and they that dwell therein shall die in like manner: but my salvation shall be for ever, and my righteousness shall not be abolished. Hearken unto me, ye that know righteousness, the people in whose heart is my law; fear ye not the reproach of men, neither be ye afraid of their revilings. For the moth shall eat them up like a garment, and the worm shall eat them like wool: but my righteousness shall be for ever, and my salvation from generation to generation.” (Isaiah 51:4-8)
The New Testament confirms Jesus as our Righteousness: “But of him are ye in Christ Jesus, who of God is made unto us wisdom, and righteousness, and sanctification, and redemption…”
As far as Jesus as our Salvation, the whole Isaiah 12 speaks about it, as well as a great part of the New Testament Scriptures.
Righteousness also, is probably the only authentic quality to have, in order to issue true judgment and the Lord is the True Judge. John 5:22 says: ”For the Father judgeth no man, but hath committed all judgment unto the Son...”
And of course, Righteousness is also connected to holiness – one other theme frequently spoken of, by the prophets of God. Isaiah 30 chapter speaks a lot about the Lord being the Holy One of Israel. And Mark 1:24 specifically calls the Lord Jesus just that: “Saying, Let us alone; what have we to do with thee, thou Jesus of Nazareth? art thou come to destroy us? I know thee who thou art, the Holy One of God.”
Finally, we can see Jesus in Isaiah as our Comfort. Isaiah 51:3 and 66:13 speak about the Lord’s comfort bringing joy, gladness, singing and thanksgiving in our life. In the New Testament, Jesus said: “I will not leave you comfortless: I will come to you.” (John 14:18). Just two verses before that, Jesus is promising the disciples that He will send them another Comforter – the Holy Spirit, to be with them always and forever.