Regeneration occurs after repentance of ones sins and the acceptance of Salvation through (only) Christ Jesus.
Biblical repentance as preached by John the Baptist, the Lord Jesus Christ, and the Apostles, involved a change of heart and mind towards God and sin that results in a change of life: obedience.
You have it backwards.
I guess that means you understand "imputed righteousness". :)
It amazes me how so many defend so hard the doctrine of salvation by grace alone to the point of twisting it to mean that the normal expression of life in Christ is to simply have the correct "beliefs".
- Kevin