When something in the house stinks don’t grab an air-freshener – find what stinks and get it out of the house!
Air-fresheners only mask the problem temporarily because they aren’t the solution. The solution is only found in finding the source of the smell and getting rid of it.
Repentance works the same way when it comes to sin. We have to get to the source of the problem and kick it out of the house or else the “odor” will just keep coming back.
“Now I rejoice, not that you were made sorry, but that your sorrow led to repentance. For you were made sorry in a godly manner, that you might suffer loss from us in nothing. For godly sorrow produces repentance leading to salvation, not to be regretted; but the sorrow of the world produces death.” (2 Corinthians 7:9-10)