The example of those who take allies other than Allah is like that of the spider who takes a home. And indeed, the weakest of homes is the home of the spider, if they only knew.  

مَثَلُ الَّذِينَ اتَّخَذُوا مِنْ دُونِ اللَّهِ أَوْلِيَاءَ كَمَثَلِ الْعَنْكَبُوتِ اتَّخَذَتْ بَيْتًا ۖ وَإِنَّ أَوْهَنَ الْبُيُوتِ لَبَيْتُ الْعَنْكَبُوتِ ۖ لَوْ كَانُوا يَعْلَمُونَ  

Indeed, Allah knows whatever thing they call upon other than Him. And He is the Exalted in Might, the Wise.  

إِنَّ اللَّهَ يَعْلَمُ مَا يَدْعُونَ مِنْ دُونِهِ مِنْ شَيْءٍ ۚ وَهُوَ الْعَزِيزُ الْحَكِيمُ  

And these examples We present to the people, but none will understand them except those of knowledge.  

وَتِلْكَ الْأَمْثَالُ نَضْرِبُهَا لِلنَّاسِ ۖ وَمَا يَعْقِلُهَا إِلَّا الْعَالِمُونَ  

Allah created the heavens and the earth in truth. Indeed in that is a sign for the believers.  

خَلَقَ اللَّهُ السَّمَاوَاتِ وَالْأَرْضَ بِالْحَقِّ ۚ إِنَّ فِي ذَٰلِكَ لَآيَةً لِلْمُؤْمِنِينَ