The Forgiver
فَٱصْبِرْ إِنَّ وَعْدَ ٱللَّهِ حَقٌّ وَٱسْتَغْفِرْ لِذَنۢبِكَ وَسَبِّحْ بِحَمْدِ رَبِّكَ بِٱلْعَشِىِّ وَٱلْإِبْكَـٰرِ
So be patient, [O Muhammad]. Indeed, the promise of Allah is truth. And ask forgiveness for your sin and exalt [Allah] with praise of your Lord in the evening and the morning.
Nearby ayahs help place verse 40:55 in sequence and meaning.
وَلَقَدْ ءَاتَيْنَا مُوسَى ٱلْهُدَىٰ وَأَوْرَثْنَا بَنِىٓ إِسْرَٰٓءِيلَ ٱلْكِتَـٰبَ
And We had certainly given Moses guidance, and We caused the Children of Israel to inherit the Scripture
هُدًى وَذِكْرَىٰ لِأُو۟لِى ٱلْأَلْبَـٰبِ
As guidance and a reminder for those of understanding.
إِنَّ ٱلَّذِينَ يُجَـٰدِلُونَ فِىٓ ءَايَـٰتِ ٱللَّهِ بِغَيْرِ سُلْطَـٰنٍ أَتَىٰهُمْ ۙ إِن فِى صُدُورِهِمْ إِلَّا كِبْرٌ مَّا هُم بِبَـٰلِغِيهِ ۚ فَٱسْتَعِذْ بِٱللَّهِ ۖ إِنَّهُۥ هُوَ ٱلسَّمِيعُ ٱلْبَصِيرُ
Indeed, those who dispute concerning the signs of Allah without [any] authority having come to them - there is not within their breasts except pride, [the extent of] which they cannot reach. So seek refuge in Allah. Indeed, it is He who is the Hearing, the Seeing.
لَخَلْقُ ٱلسَّمَـٰوَٰتِ وَٱلْأَرْضِ أَكْبَرُ مِنْ خَلْقِ ٱلنَّاسِ وَلَـٰكِنَّ أَكْثَرَ ٱلنَّاسِ لَا يَعْلَمُونَ
The creation of the heavens and earth is greater than the creation of mankind, but most of the people do not know.