Surah Ya-Sin — Ayah 24 (36:24)
إِنِّيٓ إِذٗا لَّفِي ضَلَٰلٖ مُّبِينٍ ٢٤
English translation (Saheeh International)
Indeed, I would then be in manifest error.
Brief commentary
If I have to take them as deities besides Allah I would be in clear error as I would have worshipped a being that is not deserving of worship and I would have omitted worshipping the Being Who is deserving thereof.