The Sword of Righteousness is the Word of God in you, Who is Christ in you executing His Righteousness through you to bring Glory to the Father.

Jesus Christ is your righteousness, Who is the Sword of the Spirit, Who is the Word of God, Himself in you.

God has equipped you for the battles you will face. Bu speaking the Word of Truth, in the power of God, you utilize the weapons of righteousness for the right hand to attack and for the left hand to defend. (‭‭2 Corinthians‬ ‭6:7‬)‬

Understanding God's righteousness reveals to you the power of the weapons of righteousness given to you by God.

Paul described the Gospel as the revelation of God’s righteousness (Romans 3:21). “

But now the righteousness of God has been revealed independently and altogether apart from the Law, although actually it is attested by the Law and the Prophets, Namely, the righteousness of God which comes by believing with personal trust and confident reliance on Jesus Christ (the Messiah). And it is meant for all who believe. For there is no distinction, Since all have sinned and are falling short of the honor and glory which God bestows and receives. All are justified and made upright and in right standing with God, freely and gratuitously by His grace (His unmerited favor and mercy), through the redemption which is provided in Christ Jesus, the Father having made peace through His Blood. (Romans ‭3:21-24‬)

Now God through His powerful declaration of acquittal, He freely gives His righteousness to you. His gift of love and favor now cascades over you, all because Jesus, the Anointed One, has liberated you from the guilt, punishment, and power of sin! Romans ‭3:24‬

Jesus’ God-given destiny was to be the sacrifice to take away your sins, and now He is your mercy seat because of His death on the cross. You come to Him for mercy, for God has made a provision for you to be forgiven by faith in the sacred blood of Jesus. This is the perfect demonstration of God’s righteousness, which makes you justified and upright and in right standing with God, by His grace, because until now, God had been so patient—holding back His justice out of His tolerance for you. So He covered over the sins of those who lived prior to Jesus’ sacrifice.
‭‭Romans‬ ‭3:25‬ ‬

And when the season of tolerance came to an end, there was only one possible way for God to give away His righteousness and still be true to both His justice and His mercy—to offer up His own Son. So now, because you stand on the faithfulness of Jesus, God declares you righteous in His eyes!
‭‭Romans‬ ‭3:26‬ ‬

Even though you were once distant from him, living in the shadows of your evil thoughts and actions, he reconnected you back to himself. He released his supernatural peace to you through the sacrifice of his own body as the sin-payment on your behalf so that you would dwell in his presence. And now there is nothing between you and Father God, for he sees you as holy, flawless, and restored, (Colossians ‭1:21-22‬)

God made you alive together in fellowship and in union with Christ; He gave us the very life of Christ Himself. (Ephesians ‭2:5‬)

Since you are now joined to Christ, you have been given the treasures of redemption by His blood—the total cancellation of your sins—all because of the cascading riches of His grace. This superabundant grace is already powerfully working in you, releasing within you all forms of wisdom and practical understanding. (Ephesians ‭1:7-8‬)

For this reason Jesus said that the main thing you should seek after is God's Righteousness.

Seek first the kingdom of God and His righteousness, and all these things shall be added to you. (Matthew ‭6:33‬)

Jesus is saying: above all, constantly chase after the realm of God’s kingdom and the righteousness that proceeds from Him, which you have received in Christ. Then all these less important things will be given to you abundantly. (Matthew ‭6:33‬)

God has made you the Righteousness of Christ Who are in Christ Jesus.

And because you really are His child God has sent the Holy Spirit of His Son into your heart, (Galatians ‭4:6‬)

Your body is the Temple of the Holy Spirit, whom you have from God, and you are not your own. (1Corinthians ‭6:19‬)