﴿ أُبَلِّغُكُمْ رِسَٰلَٰتِ رَبِّى وَأَنَا۠ لَكُمْ نَاصِحٌ أَمِينٌ ﴾

“I am delivering unto you my Sustainer's messages and advising you truly and wells.”

(I convey unto you the messages of my Lord) by explaining the commands and prohibitions (and am for you a true adviser) warning you of Allah's torment and calling you to repentance and faith, and I am trustworthy in conveying the message of my Lord. It is also said that this means: you used to consider me a trustworthy person, so how is it that you are now accusing me.