Very likely, you can think of numerous other occasions in Bible history when Jehovah provided life - saving instructions through human or angelic representatives.
بَلْ كَانَ عَلَيْهِمْ أَنْ يَسْمَعُوا لِشُيُوخِ إِسْرَائِيلَ ٱلَّذِينَ تَلَقَّوْا بِدَوْرِهِمْ تَوْجِيهَاتٍ مُحَدَّدَةً مِنْ مُوسَى .‏