If a sin has been committed, let us continuously feel remorse and weep for forgiveness

"Let us resolve to divert some of our energies towards the fear and hope of the hereafter. If a sin has been committed, let us continuously feel remorse and weep for forgiveness, forgetting luxury and comforts, repenting till our last moment when we hear the good news. “(As for) those who say: Our Lord is Allah, then continue in the right way, the angels descend upon them, saying: Fear not, nor be grieved, and receive good news of the Garden which you were promised.” (Surah Fussilat 41:30). Let us realize that it is obligatory for the believers to remain in fear of Allah till the end of their lives."