“He spoke to Koraḥ…Morning” – what did he see that led him to say: “Morning”? Moses said: ‘Perhaps they said this matter as a result of food and drink.’ He said: ‘Perhaps, in any case, they will repent.’ That is why it is stated: “Morning, the Lord will disclose.”
He said to them: ‘I do not have permission to enter now. There is no eating and drinking before Him; however, it is because of us, because we have eaten and drunk.’ Another matter, Moses said to them: ‘The Holy One blessed be He imposed boundaries in His world. Are you able to mix day and night?
That is what the verse said initially: “It was evening, it was morning” (Genesis 1:5); “God distinguished between the light and the darkness” (Genesis 1:4) for the use of the world. Just as He distinguished between the light and the darkness for the use of the world, so He distinguished Israel from the nations, as it is stated: “I have distinguished you from the peoples to be Mine” (Leviticus 20:26).
And so, He distinguished Aaron, as it is stated: “Aaron was set apart to sanctify Him with sanctity of the highest order” (I Chronicles 23:13). If you are able to remove that distinction that He distinguished between light and darkness, you can nullify this.’ That is why he said to them: “Morning, the Lord will disclose who is His, and who is holy, and will bring him near to Him” (Numbers 16:5) – he is already designated – “and whom He shall choose, He will bring near to Him” (Numbers 16:5).