Musa said:"Verily, I seek refuge in my Lord and your Lord from every arrogant who believes not in the Day of Reckoning!"means, when he heard that Fir`awn had said, ذَرُونِي أَقْتُلْ مُوسَى (Leave me to kill Musa), Musa, peace be upon him, said, "I seek refuge and protection with Allah from his evil and the evil of those like him."So he said:إِنِّي عُذْتُ بِرَبِّي وَرَبِّكُم (Verily, I seek refuge in my Lord and your Lord) -- those who were being addressed here -- مِّن كُلِّ مُتَكَبِّرٍ (from every arrogant) means, from every evildoer, لاَّا يُوْمِنُ بِيَوْمِ الْحِسَابِ (who believes not in the Day of Reckoning!). It was reported in the Hadith narrated from Abu Musa, may Allah be pleased with him, that when the Messenger of Allah was afraid of some people, he would say:اللْهُمَّ إِنَّا نَعُوذُ بِكَ مِنْ شُرُورِهِمْ وَنَدْرَأُ بِكَ فِي نُحُورِهِمO Allah, we seek refuge in You from their evil and we seek Your help in repulsing them.