Protection from enemies

وَإِذْ فَرَقْنَا بِكُمُ ٱلْبَحْرَ فَأَنجَيْنَـٰكُمْ وَأَغْرَقْنَآ ءَالَ فِرْعَوْنَ وَأَنتُمْ تَنظُرُونَ

And [recall] when We parted the sea for you and saved you and drowned the people of Pharaoh while you were looking on.

قَالَ رَبِّ إِنِّى قَتَلْتُ مِنْهُمْ نَفْسًا فَأَخَافُ أَن يَقْتُلُونِ

He said, "My Lord, indeed I killed from among them someone, and I fear they will kill me.