۞ وَوَٰعَدْنَا مُوسَىٰ ثَلَٰثِينَ لَيْلَةً وَأَتْمَمْنَٰهَا بِعَشْرٍ فَتَمَّ مِيقَٰتُ رَبِّهِۦٓ أَرْبَعِينَ لَيْلَةً ۚ وَقَالَ مُوسَىٰ لِأَخِيهِ هَٰرُونَ ٱخْلُفْنِى فِى قَوْمِى وَأَصْلِحْ وَلَا تَتَّبِعْ سَبِيلَ ٱلْمُفْسِدِينَ
2:52.
Commentary:
The promised nights were only thirty, and ten were added subsequently to increase the favour. In fact, God’s communion with Moses was completed in the promised thirty nights, as hinted in the next verse. So the prolongation of the period by ten nights, which was due to the request of Moses to God to manifest Himself to him, did not form part of the promise but was something additional.
The words, Act for me among my people in my absence, clearly indicate that Aaron’s position was subordinate to that of Moses. Moses called the Israelites "my people" and directed Aaron to act for him, i.e. officiate in his place during his absence, which shows that Aaron occupied no independent position but was only a subordinate Prophet to Moses.
The words, and follow not the ways of those who cause disorder, are intended as a warning to Aaron to beware of the mischief-makers and adopt a strong policy.
The use of the word "nights" is significant. As this period was meant to be passed in meditation and devotion for which the quiet and calmness of the night is much more suitable than the day, so God used the word "nights".
2:52.
God’s communion with Moses was completed in the promised thirty nights. The prolongation of the period by ten nights did not form part of the promise but was an additional favour.
The words show that Aaron’s position was that of a subordinate to Moses. Moses called the Israelites "my people” and directed Aaron to act for him, i.e. officiate in his place during his absence.