It depends on the verses that are used from Romans and what your examiner will be looking for.

This is the greatest possibility:

God could not forgive the sins of mankind without satisfying justice—in effect, without a legal basis. But through his undeserved kindness he made this just arrangement by providing his Son as a sacrificial offering, a propitiation, or a covering for sins. In this way he can righteously exercise mercy toward sinners who accept this arrangement. Paul expresses the matter in the following manner: “But now apart from law God’s righteousness has been made manifest, . . . yes, God’s righteousness through the faith in Jesus Christ . . . For all have sinned and fall short of the glory of God, and it is as a free gift that they are being declared righteous by his undeserved kindness through the release by the ransom paid by Christ Jesus. . . . that he [God] might be righteous even when declaring righteous the man [the inherently sinful man] that has faith in Jesus.”—Ro 3:21-26

Our right ways of seeing and doing things are not Gods Righteousness, we must come to him and except his spirit that brings his Righteousness into our spirit mind soul and body

This is a really good website that explains the righteousness of God in Romans. I tried to copy and paste, but it was too long!

http://bible.cc/romans/3-22.htm

Good luck!

throughout the entire body of scripture, God's righteousness always refers to His correction/instruction. His righteousness is the reason we have a Bible and are aware of those things that happened.

RIGHTEOUSNESS, n. ri'chusness.

1. Purity of heart and rectitude of life; conformity of heart and life to the divine law. Righteousness, as used in Scripture and theology, in which it is chiefly used, is nearly equivalent to holiness, comprehending holy principles and affections of heart, and conformity of life to the divine law. It includes all we call justice, honesty and virtue, with holy affections; in short, it is true religion.

2. Applied to God, the perfection or holiness of his nature; exact rectitude; faithfulness.

3. The active and passive obedience of Christ, by which the law of God is fulfilled. Dan 9.

4. Justice; equity between man and man. Luke 1.

5. The cause of our justification.

The Lord our righteousness. Jer 23.

what part of Rom