Surah Al-Baqarah 2:52

ثُمَّ عَفَوْنَا عَنكُم مِّنۢ بَعْدِ ذَٰلِكَ لَعَلَّكُمْ تَشْكُرُونَ

Then We forgave you after that so perhaps you would be grateful.

Translation: Saheeh International

Tafsir

Then We pardoned you erasing your sins after that act of worship so that you might be thankful for Our favour upon you.

Excerpt from Tafsir al-Jalalayn, commentary on 2:52, via Quran.com. The reader has the full commentary and 9 more tafsirs.