laa tahzan innallaha ma'ana

ذكر الله باللسان حسن، وأفضل منه أنه يذكر الله العبد عند المعصية فيسمك عنها.ـ

Remembrance of Allah with the tongue is a good thing, and what is better is the remembrance of Allah when one is about to commit a sin, and this preventing him from committing it.