We can lose created grace by breaking away from God's gift of sharing in his eternal life. Even if we do sin, our human nature can never be evil or corrupt, but remains always in the goodness of god's continued call to us to return to live fully unto God's glory. We may succumb to sin and commit moral evil, but such evil is not able to touch or destroy or corrupt our nature. We can lose grace, the divine likeness, but the human nature given to us by God is good and can never be destroyed.
— George A. Maloney, Gold, Frankincense, and Myrrh