Since God has forgiven you in Christ, therefore repent. This is the proper way (and Biblical way) of looking at repentance.
However, repentance is often presented in a very different way – If and only if you repent will God forgive you. There is a vast gulf between these ways of looking at repentance and they affect how we view God.
The Surprising God Blog has posted an article by Gary Deddo that looks at thsi in more depth. It can be found at: