Surah Ar-Rum 30:43

فَأَقِمْ وَجْهَكَ لِلدِّينِ ٱلْقَيِّمِ مِن قَبْلِ أَن يَأْتِىَ يَوْمٌ لَّا مَرَدَّ لَهُۥ مِنَ ٱللَّهِ ۖ يَوْمَئِذٍ يَصَّدَّعُونَ

So direct your face [i.e., self] toward the correct religion before a Day comes from Allāh of which there is no repelling. That Day, they will be divided.

Translation: Saheeh International

Tafsir

So set your purpose for the upright religion the religion of Islam before there comes the inevitable day from God namely the Day of Resurrection. On that day they shall be sundered yassadda‘ūna the original tā’ yatasadda‘ūna has been assimilated with the sād that is they will be split into separate groups after the …

Excerpt from Tafsir al-Jalalayn, commentary on 30:43, via Quran.com. The reader has the full commentary and 9 more tafsirs.