Surah Luqman 31:27

وَلَوْ أَنَّمَا فِى ٱلْأَرْضِ مِن شَجَرَةٍ أَقْلَـٰمٌ وَٱلْبَحْرُ يَمُدُّهُۥ مِنۢ بَعْدِهِۦ سَبْعَةُ أَبْحُرٍ مَّا نَفِدَتْ كَلِمَـٰتُ ٱللَّهِ ۗ إِنَّ ٱللَّهَ عَزِيزٌ حَكِيمٌ

And if whatever trees upon the earth were pens and the sea [was ink], replenished thereafter by seven [more] seas, the words of Allāh would not be exhausted. Indeed, Allāh is Exalted in Might and Wise.

Translation: Saheeh International

Tafsir

And if all the trees on earth were pens and the sea wa’l-bahru is a supplement to mā the subject of anna replenished with seven more seas were ink the Words of God would not be spent those words expressing all the things He knows written in those pens with that amount of ink or with even more ink than that would not …

Excerpt from Tafsir al-Jalalayn, commentary on 31:27, via Quran.com. The reader has the full commentary and 9 more tafsirs.