Yes, Jehovah was leading his people. How was Moses guided by God’s Law?
لٰكِنَّ مَلَاكَ يَهْوَهَ ضَرَبَ فِي لَيْلَةٍ وَاحِدَةٍ ‏ « مِئَةً وَخَمْسَةً وَثَمَانِينَ أَلْفًا فِي مُعَسْكَرِ ٱلْأَشُّورِيِّينَ » .‏ —‏ ٢ مل ١٩ :‏ ٣٥‏ .‏