لَكُنَّا عِبَادَ ٱللَّهِ ٱلْمُخْلَصِينَ
we would surely have been the purified servants of Allah.
Roots in this verse: ك و ن (kwn), ع ب د (Ebd), ا ل ه (Alh), خ ل ص (xlS)