And because of him you are in Christ Jesus, who became to us wisdom from God, righteousness and sanctification and redemption ~1 Corinthians 1:30
Sin disturbed all of our relationships and put us out of harmony - with ourselves, with others, and with God. We needed peace - the quietness and assurance that comes when things are right with God. Peace can only come with righteousness, when everything is in God's order and everything is in harmony with His will.
Jesus came to restore peace by restoring righteousness.
"A king will reign in righteousness. . . the fruit of righteousness will be peace; the effect of righteousness will be quietness and confidence forever." ~Isaiah 32:1, 17
We are made the righteousness of God in Him. ~ 2 Corinthians 5:21
When the sinner is first led to trust in Christ for salvation, he looks more to Christ's work than to His person. He realizes that Christ paid the price for his sin, taking on the punishment he deserved, and that He atoned for him, removing the curse.
Having been justified by faith, we have peace with God. ~Romans 5:1
The new Christian seeks to wear this robe of righteousness by renewing his faith and by being thankful for this glorious gift! But as he grows in grace, he learns about the true union of the believer with Christ, Who made Himself One with His people.
The work of Christ does not become less precious; yet the person of Christ becomes more and more precious. We have to remember that we do not love God for the goodies He gives. It's not just about the robe of righteousness that I was given and gladly wear. It's all about Jesus. The Living Christ is my righteousness.
Jesus is my Righteous Redeemer
In his days Judah will be saved, and Israel will dwell securely. And this is the name by which he will be called: ‘The LORD is our righteousness.’ ~Jeremiah 23:6
“Only in the LORD, it shall be said of me, are righteousness and strength; ~Isaiah 45:24 ESV
Indeed, I count everything as loss because of the surpassing worth of knowing Christ Jesus my Lord. For his sake I have suffered the loss of all things and count them as rubbish, in order that I may gain Christ and be found in him, not having a righteousness of my own that comes from the law, but that which comes through faith in Christ, the righteousness from God that depends on faith— ~Philippians 3:8-9 ESV
"Believer , abide in Christ as your righteousness. You still have within you a nature altogether corrupt, which is always trying to rise up and discourage your sense of acceptance and access to unbroken fellowship with the Father. Nothing can enable you to dwell and walk in the light of God, without even the shadow of a cloud between, but habitual abiding in Christ as your righteousness. To this you are called. Seek to walk worthy of that calling. Yield yourself to the Holy Spirit. . . realize that the King's own robe has been put on you, and in it you need not fear entering His presence. It is the token that you are the person the King delights to honour. ~p.55 Abiding in Christ by Andrew Murray
You are an object of delight in God's sight. Like Mordecai who was paraded through the streets, wearing the King's robe and his signet ring, we wear the robe of Righteousness. Not only that, but we are IN CHRIST, so we have HIS RIGHTEOUSNESS.