The spiritual decline, usually begins like this: One is tempted to something wrong. Not withstanding temptation and sin it yields.
From there begins the decline. The person in sin sidelines and avoid those who could help and then goes on to accuse them of having abandoned the. Consequently, it ceases to attend worship services because it claims that no one cares about her, including those who called but were not met, who visited her, but she pretended she was not home, etc..
Finally, this person suffers with God and with others "dropped out" and leave the faith.
All this because a sin was committed, it was confessed to be treated and the patient was not restored in spirit. And whose fault is it?