Surah Az-Zumar 39:3

أَلَا لِلَّهِ ٱلدِّينُ ٱلْخَالِصُ ۚ وَٱلَّذِينَ ٱتَّخَذُوا۟ مِن دُونِهِۦٓ أَوْلِيَآءَ مَا نَعْبُدُهُمْ إِلَّا لِيُقَرِّبُونَآ إِلَى ٱللَّهِ زُلْفَىٰٓ إِنَّ ٱللَّهَ يَحْكُمُ بَيْنَهُمْ فِى مَا هُمْ فِيهِ يَخْتَلِفُونَ ۗ إِنَّ ٱللَّهَ لَا يَهْدِى مَنْ هُوَ كَـٰذِبٌ كَفَّارٌ

Unquestionably, for Allāh is the pure religion. And those who take protectors besides Him [say], "We only worship them that they may bring us nearer to Allāh in position." Indeed, Allāh will judge between them concerning that over which they differ. Indeed, Allāh does not guide he who is a liar and [confirmed] disbeliever.

Translation: Saheeh International

Tafsir

Surely to God belongs pure religion none other than Him being deserving of it. And those who take besides Him the idols as patrons and they are the disbelievers of Mecca — they say ‘We only worship them so that they may bring us near to God’ zulfā a verbal noun with the sense of taqrīban ‘for the sake of nearness’. …

Excerpt from Tafsir al-Jalalayn, commentary on 39:3, via Quran.com. The reader has the full commentary and 9 more tafsirs.