1. The plan (Romans 3:21). God's plan for providing the needed righteousness centered in Jesus Christ. It was apart from Law. The construction is without an article, indicating it was apart from not only the Mosaic Law, which could not provide that righteousness (Acts 13:39) but also from all legal complications. It was manifested (a perfect passive form) at the Incarnation of Christ, and the effects of that great intervention in history continue. It is constantly witnessed by the Law and the Prophets, who testified of the coming of Messiah (1 Peter 1:11). Thus the plan centers in a person.
21 But now God has shown us a different way of being right in his sight — not by obeying the law but by the way promised in the Scriptures long ago. NLT
39 And that through Him everyone who believes [who acknowledges Jesus as his Savior and devotes himself to Him] is absolved (cleared and freed) from every charge from which he could not be justified and freed by the Law of Moses and given right standing with God. AMP
1 Peter 1:11
11 They sought [to find out] to whom or when this was to come which the Spirit of Christ working within them was indicating when He predicted the sufferings of Christ and the glories that should follow [them]. AMP
2. The prerequisite (Romans 3:22). Righteousness comes through faith in the now-revealed Jesus Christ. The New Testament never says we are saved because of faith (that would require dia with the accusative). It always makes faith the channel through which we receive salvation (dia with the genitive). But, of course, faith must have the right object to be effective, and the object of saving faith is Jesus Christ.
22 We are made right in God's sight when we trust in Jesus Christ to take away our sins. And we all can be saved in this same way, no matter who we are or what we have done. NLT
3. The price (Romans 3:24-25). Quite clearly the price paid was the blood of Christ. The cost to Him was the greatest. To us the benefit comes freely (the same word is translated "without a cause" in John 15:25), that is, without any cause in us, and so by His grace.
24 Yet now God in his gracious kindness declares us not guilty. He has done this through Christ Jesus, who has freed us by taking away our sins. 25 For God sent Jesus to take the punishment for our sins and to satisfy God's anger against us. We are made right with God when we believe that Jesus shed his blood, sacrificing his life for us. God was being entirely fair and just when he did not punish those who sinned in former times. NLT
25 But [this is so] that the word written in their Law might be fulfilled, They hated Me without a cause. [Psalms 35:19; 69:4.] AMP
4. The position. When the individual receives Christ, he is placed in Christ. This is what makes him righteous. We are made the righteousness of God in Him. This righteousness alone overcomes our desperate, sinful condition and measures up to all the demands of God's holiness.
5. The pronouncement (Romans 3:26). Not only does Christ's righteousness, which we have, meet God's demands, but it also demands that God justify us. We are in fact, not fiction, righteous; therefore, the holy God can remain just and justify the one who believes in the Lord Jesus.
Therefore, no one can lay anything to the charge of God's elect, for we are in Christ righteous in God's sight. And this is why God can justify us.
26 And he is entirely fair and just in this present time when he declares sinners to be right in his sight because they believe in Jesus. NLT