Tafsiran Bilangan 11:30: Rashi, Rabbeinu Bahya, Siftei Chakhamim & Chizkuni

ויאסף משה AND MOSES [AND THE ELDERS OF ISRAEL] RETIRED from the entrance of the appointed tent.

ויאסף משה אל המחנה הוא וזקני ישראל, “Moses then reentered the camp, he and the elders of Israel.” He went with the elders to accord them honour. The disaster did not strike until each one had returned to his tent.

From the entrance to the Tent of Meeting. Since the implication of ויאסף ([Moshe] entered) implies that he was outside the camp. Therefore Rashi needed to explain “from the entrance to the Tent of Meeting” which was the camp of the Divine Presence and consequently outside Moshe’s camp — the camp of the Levites.

אל המחנה INTO THE CAMP — i.e. they each went into his tent in the camp. ...

אסף — ויאסף is a term for “bringing into the house”, as, (Deuteronomy 22:2) “thou shalt bring it (ואספתו) into thine house”, The passage that proves that this is so in all cases (lit., the father of all) is, (Psalms 39:7) “he heapeth up riches, and knoweth not who shall gather them in (אוספם)” (from which it is evident that אסף must denote not “gathering together” for this is implied in יצבר, but bringing it into one’s house, taking possession of a thing). The fact that Scripture first relates that Moses and the elders entered their tents and afterwards that punishment fell upon the people teaches us that He (God) did not bring the punishment upon them before these righteous men had retired each into his tent (Sifrei Bamidbar 96).