Surah An-Nisa 4:143

مُّذَبْذَبِينَ بَيْنَ ذَٰلِكَ لَآ إِلَىٰ هَـٰٓؤُلَآءِ وَلَآ إِلَىٰ هَـٰٓؤُلَآءِ ۚ وَمَن يُضْلِلِ ٱللَّهُ فَلَن تَجِدَ لَهُۥ سَبِيلًا

Wavering between them, [belonging] neither to these [i.e., the believers] nor to those [i.e., the disbelievers]. And whoever Allāh sends astray - never will you find for him a way.

Translation: Saheeh International

Tafsir

Wavering hesitant all the time between that unbelief and belief — not belonging to these disbelievers neither to those believers; and he whom God sends astray you will never find for him a way a path back to guidance.

Excerpt from Tafsir al-Jalalayn, commentary on 4:143, via Quran.com. The reader has the full commentary and 9 more tafsirs.