Surat Al Baqarah (61)

{ وَإِذْ قُلْتُمْ يَا مُوسَى لَن نَّصْبِرَ عَلَىَ طَعَامٍ وَاحِدٍ فَادْعُ لَنَا رَبَّكَ يُخْرِجْ لَنَا مِمَّا تُنبِتُ الأَرْضُ مِن بَقْلِهَا وَقِثَّآئِهَا وَفُومِهَا وَعَدَسِهَا وَبَصَلِهَا قَالَ أَتَسْتَبْدِلُونَ الَّذِي هُوَ أَدْنَى بِالَّذِي هُوَ خَيْرٌ اهْبِطُواْ مِصْراً فَإِنَّ لَكُم مَّا سَأَلْتُمْ وَضُرِبَتْ عَلَيْهِمُ الذِّلَّةُ وَالْمَسْكَنَةُ وَبَآؤُوْاْ بِغَضَبٍ مِّنَ اللَّهِ ذَلِكَ بِأَنَّهُمْ كَانُواْ يَكْفُرُونَ بِآيَاتِ اللَّهِ وَيَقْتُلُونَ النَّبِيِّينَ بِغَيْرِ الْحَقِّ ذَلِكَ بِمَا عَصَواْ وَّكَانُواْ يَعْتَدُونَ } [البقرة:  61]

61- Remember the favor of good food which Allah bestowed upon you: Mann and quails, but you felt bored and wished for the lower standard of living. You asked Moses to supplicate Allah so that He may bring forth for you legumes such as cucumber, garlic, lentils and onion. Your Prophet condemned that and said to you: Would you like to have the less valuable food and prefer it to the good which is delicious and useful?!
That which you asked was not dear, but it was rather cheap and easy, and you could find it everywhere.

Therefore, they were covered with humiliation and misery. They have been humiliated by people wherever they were, and deserved the wrath of Allah for the major sins they had committed [like disbelieving in Allah and His Clear Proofs] because of their arrogance to follow the truth, humiliation, and trying to kill the best people, i.e., the Prophets of Allah. Such punishment was the retribution of Allah to those who disobeyed Him and oppressed Allah's Creation.