Surat Al A`raf: (132-133)

{وَقَالُواْ مَهْمَا تَأْتِنَا بِهِ مِن آيَةٍ لِّتَسْحَرَنَا بِهَا فَمَا نَحْنُ لَكَ بِمُؤْمِنِينَ} [الأعراف: 132]

132- The people of the Pharaoh said to Moses in stubbornness and persistence on falsehood: Any miracle that you shall bring to confuse us or ward us off our religion will not be futile and we will not accept it from you and we shall not believe in you or in your message.

{فَأَرْسَلْنَا عَلَيْهِمُ الطُّوفَانَ وَالْجَرَادَ وَالْقُمَّلَ وَالضَّفَادِعَ وَالدَّمَ آيَاتٍ مُّفَصَّلاَتٍ فَاسْتَكْبَرُواْ وَكَانُواْ قَوْماً مُّجْرِمِينَ} [الأعراف: 133]

133- So, the retribution for their disbelief and persistence on falsehood was punishment by sending them a flood which filled their homes, destroyed their production, and drowned their lands. Then we sent them locusts to ruin their plants and fruits then we sent them louse and frogs which filled their homes, vessels, and food, then blood which filled their river, and they were drinking blood and were not able to cook. All those clear divine signs and proofs were enough to deter disbelief, make them submit to Allah and believe in His Message, but they refused to believe and were criminals and disbelievers.