وَقُلAnd say:رَّبِّ اغْفِرْ وَارْحَمْ وَأَنتَ خَيْرُ الرَّاحِمِينَMy Lord!Forgive and have mercy, for You are the best of those who show mercy! Here Allah is teaching us to recite this supplication, for forgiveness, in a general sense, means wiping away sins and concealing them from people, and mercy means guiding a person and helping him to say and do good things.This is the end of the Tafsir of Surah Al-Mu'minun. All praise and thanks are due to Allah.