فَتَعَالَى اللَّهُ الْمَلِكُ الْحَقُّ لَا إِلَهَ إِلَّا هُوَ رَبُّ الْعَرْشِ الْكَرِيمِ ﴿۱۱۶﴾ وَمَنْ يَدْعُ مَعَ اللَّهِ إِلَهًا آخَرَ لَا بُرْهَانَ لَهُ بِهِ فَإِنَّمَا حِسَابُهُ عِنْدَ رَبِّهِ إِنَّهُ لَا يُفْلِحُ الْكَافِرُونَ ﴿۱۱۷﴾ وَقُلْ رَبِّ اغْفِرْ وَارْحَمْ وَأَنْتَ خَيْرُ الرَّاحِمِينَ ﴿۱۱۸﴾

﴾116﴿ Fata'aalal laahul Malikul Haqq; laaa ilaaha illaa Huwa Rabbul 'Arshil Kareem
﴾117﴿ Wa mai yad'u ma'allaahi ilaahan aakhara laa burhaana lahoo bihee fa inna maa hisaabuhoo 'inda Rabbih; innahoo laa yuflihul kaafiroon
﴾118﴿ Wa qul Rabbigh fir warham wa Anta khairur raahimeen

﴾116﴿ So exalted is Allah, the Most High, the true Sovereign. There is no deity worthy of worship except Him, the Lord of the Noble Throne
﴾117﴿ And whoever calls upon another helper alongside Allah (considering them a deity) without any evidence for it, then surely their reckoning is with their Lord. Indeed, the disbelievers will not succeed
﴾118﴿ "And say: 'O my Lord, forgive and have mercy, and You are the best of those who show mercy

[116] This is the reasoning behind the previous verse—meaning, Allah does not do anything in vain. He is far above doing anything pointless.
Or, it is a conclusion to the entire surah—since at the beginning of the surah, it was mentioned "(فَتَبَارَكَ اللَّهُ)", and other aspects of His authority and proofs of His Lordship and Divinity were mentioned, along with the affirmation of resurrection after death. So, the result is stated: that it is known Allah is Great and pure from partners and from purposeless actions.
After that, four attributes of Allah are mentioned as a proof. "(الْكَرِيمِ)"—the Throne of Allah is Kareem (noble, generous), meaning all blessings and mercy descend from it.
Also, Kareem means that none can challenge Him, nor can His honor be diminished. Kareem also means beautiful.
[117] This is a conclusion drawn from the previous verse, along with a refutation of associating partners in supplication. "(لَا بُرْهَانَ)"—this is a true condition, meaning there is absolutely no evidence for associating partners with Allah.
"(فَإِنَّمَا حِسَابُهُ عِنْدَ رَبِّهِ)"—this points to the severity of the punishment for shirk and also indicates that it will not be forgiven.
"(إِنَّهُ لَا يُفْلِحُ الْكَافِرُونَ)"—this presents a general summary of their reckoning, and it explicitly states that supplicating to anyone besides Allah is disbelief.
And this sentence contrasts with the beginning of the surah where it says, "(قَدْ أَفْلَحَ الْمُؤْمِنُونَ)"—meaning success is not in disbelief, but true success is specific to faith.
[118] This is a command to the Prophet (May Allah bless him and give him peace) to supplicate for those from his Ummah who have protected themselves from disbelief and polytheism. They are the believers whose qualities were described at the beginning of the surah, and so in the end, the supplication of the Prophet (May Allah bless him and give him peace) is mentioned for them.