My Dear Wormwood,
Our patient has only recently become a Christian, and over the coming weeks, we should expect him to make some genuine progress in overcoming certain sins in which he has dabbled over the course of his life. He may have struggled with theft up until this point, or telling lies, or anger, or drunkenness. If you see him enjoy some victory over these vices, do not be discouraged. Chances are good that, despite his minor successes, one particular sin will continue to trip him up.