We can, as God's children, reign in life in God's righteousness, alone. There is no other way to have right standing before our loving Father in heaven other than the righteousness that is imputed or given to us in Christ. His righteousness becomes our righteousness to all who believe. Only the righteous will live with God throughout eternity. If you have repented and asked Jesus for forgiveness of your sins you are then washed in the blood of the Lord Jesus Christ. You are a redeemed person and therefore righteous because you now partake of God's righteousness in Christ. You are enabled to reign in life through God's righteousness, alone.