Backsliding
Backsliding, also known as falling away or described as "committing apostasy", is a term used within Christianity to describe a process by which an individual who has converted to Christianity reverts to pre-conversion habits and/or lapses or falls into sin, when a person turns from God to pursue their own desire. To revert to sin or wrongdoing, especially in religious practice, someone lapses into previous undesirable patterns of behavior.