Surah Al-Qalam 68:4

وَإِنَّكَ لَعَلَىٰ خُلُقٍ عَظِيمٍ

And indeed, you are of a great moral character.

Translation: Saheeh International

Tafsir

And assuredly you possess a magnificent nature a magnificent religion.

Excerpt from Tafsir al-Jalalayn, commentary on 68:4, via Quran.com. The reader has the full commentary and 9 more tafsirs.