Surat Al A`raf: (176-177)

{وَلَوْ شِئْنَا لَرَفَعْنَاهُ بِهَا وَلَـكِنَّهُ أَخْلَدَ إِلَى الأَرْضِ وَاتَّبَعَ هَوَاهُ فَمَثَلُهُ كَمَثَلِ الْكَلْبِ إِن تَحْمِلْ عَلَيْهِ يَلْهَثْ أَوْ تَتْرُكْهُ يَلْهَث ذَّلِكَ مَثَلُ الْقَوْمِ الَّذِينَ كَذَّبُواْ بِآيَاتِنَا فَاقْصُصِ الْقَصَصَ لَعَلَّهُمْ يَتَفَكَّرُونَ} [الأعراف: 176]

176- If We had willed, We would have raised his rank and degree by these Ayahs, but he inclined to the world and its pleasures and was tempted. So, he followed his whim, desire, and wish, and his likeness is like a dog which if you restrain, it gasps, and if you do not restrain, it keeps gasping, for this is its nature. Likewise the person who sank in whims and refused to hear the truth, so if you call him to the truth or not, he shall not benefit from your admonition, or his condition becomes worse and he always worry such as the a gasping dog.

That was the example of the Makkans who wished for a guide to show them the way, but when the most truthful (Prophet Muhammad) came to them, they denied him. Or their example was that of the Jews who used to give glad tidings with the Messenger (peace be upon him) and mention his descriptions and the Qur'an which he brought, but when he came to them with these descriptions, they disbelieved.

So, narrate these examples and stories to people so that they may reflect, take a lesson, and keep away from falsehood.

{سَاء مَثَلاً الْقَوْمُ الَّذِينَ كَذَّبُواْ بِآيَاتِنَا وَأَنفُسَهُمْ كَانُواْ يَظْلِمُونَ} [الأعراف: 177]

177- How worse is the example of those who denied Our Ayahs who were likened with dogs, and used to oppress themselves with all kinds of sins and faults and satisfied with error and falsehood. The bad consequence of their actions shall turn against themselves.