Surah Al-Mu'minun 23:30

إِنَّ فِى ذَٰلِكَ لَـَٔايَـٰتٍ وَإِن كُنَّا لَمُبْتَلِينَ

Indeed in that are signs, and indeed, We are ever testing [Our servants].

Translation: Saheeh International

Tafsir

Surely in that mentioned matter of Noah the ship and the destruction of the disbelievers there are signs indicators of God’s power exalted be He and indeed wa-in in has been softened in place of the hardened form its subject being the pronoun of the matter We were putting to the test indeed We were trying the people …

Excerpt from Tafsir al-Jalalayn, commentary on 23:30, via Quran.com. The reader has the full commentary and 9 more tafsirs.