"... we are saved by two things - the death of Christ and the life of Christ.  The death of Christ covers our sin, but the life of Christ provides the merit and the righteousness that we must have in order to enter into heaven.  So Jesus' life is as important for us as His death.  He lived to fulfill all of the law of God."

[R. C. Sproul, "A Taste of HEAVEN: WORSHIP in the LIGHT of ETERNITY"].