The grace of a Christian walk is sanctification. It is sanctification that turns moral virtues into graces. The moral actions of each Christian are now flowing from inward, renewed principles. The Christian now acts according to God's laws, for God, in all that is eaten, drunken, bought or sold. Carnal hearts are always carnal, even in moral actions.
Spiritual hearts are new creatures, acting from new principals.
A Christian walk is the foundation of joy. There is joy and peace in Justification, founded upon the righteousness of Christ given to us. There is also joy in our sanctification as the righteousness of Christ is more and more in view in our lives. There is no peace for the wicked and hence no real joy, for Christ shall come, at death and judgment, and this will be terrible for the wicked. At death and judgment one ounce of saving grace will be more valuable, more comfortable, than hills of Gold, or millions of worlds.