﴿ قَالَ يَٰمُوسَىٰٓ إِنِّى ٱصْطَفَيْتُكَ عَلَى ٱلنَّاسِ بِرِسَٰلَٰتِى وَبِكَلَٰمِى فَخُذْ مَآ ءَاتَيْتُكَ وَكُن مِّنَ ٱلشَّٰكِرِينَ ﴾

“Said [God]: "O Moses! Behold, I have raised thee above all people by virtue of the messages which I have entrusted to thee, and by virtue of My speaking [unto thee]: hold fast, therefore, unto what I have vouchsafed thee, and be among the grateful!"”

Please check ayah 7:145 for complete tafsir.