וַ֠יָּבֹאוּ שְׁנֵ֨י הַמַּלְאָכִ֤ים סְדֹ֙מָה֙ בָּעֶ֔רֶב וְל֖וֹט יֹשֵׁ֣ב בְּשַֽׁעַר־סְדֹ֑ם וַיַּרְא־לוֹט֙ וַיָּ֣קָם לִקְרָאתָ֔ם וַיִּשְׁתַּ֥חוּ אַפַּ֖יִם אָֽרְצָה׃
I due angeli entrarono in Sodoma, in sulla sera, mentre Lot si trovava alla porta di Sodoma. Lot, vedutili, si alzò ad incontrarli, e si prostrò colla faccia a terra.
Rashi
שני TWO — One to destroy Sodom, the other to rescue Lot — it was he who had come to heal Abraham — whilst the third, who had come to make the announcement to Sarah, had departed as soon as he had carried out his mission (Midrash Tanchuma, Vayera 8).
Chizkuni
ויבאו שני המלאכים, “the two angels arrived, etc.;” Rashi points out that when these two individuals arrived in Eloney Mamre in front of Avraham’s tent, the Torah had referred to them as אנשים, men, mortal human beings, whereas now they are described as angels. If you were to counter that in the ensuing argument between the townspeople and Lot they are also described as אנשים, (verses 5,8,12) this sentence has to be understood as follows: “the ones whom the men of the city called אנשים, “men of substance, etc;” the whole dialogue must be understood thus:Alternately; Lot is saying to his fellow citizens: “do not do any harm to the guests in my house to whom you refer as אנשים. He realised that whereas he had recognised these individuals as angels, his fellow citizens obviously had not. This explanation is also applicable to verse 16, ויחזיקו האנשים, “the men” took hold of, etc.”
Da'at Zekenim
ויבואו שני המלאכים סדומה בערב, “two of the angels arrived in Sodom in the evening;” when Lot saw them, he asked them for the purpose of their visit. They told him that it was their mission to destroy the city. The reason why they volunteered this information was that they said to themselves that if they were simply to order him to leave town with their families without giving them a plausible reason, they would simply ignore them. But, since they had taken it upon themselves to reveal something G–d had not intended to be revealed at that time, they were punished by Him, by being exiled from the celestial regions for 138 years. This was in spite of the fact that what they had done had been well intentioned. Angels are subject to penalties even for committing “minor” errors by not having checked with their Master first, relying on the superior wisdom with which they had been endowed. This superior knowledge enables them to know what goes on in the minds of human beings. We find another example of punishment as warnings for celestial creatures where Mattatron, G–d’s “general manager” for running the universe on His behalf, was punished as stated in the Talmud tractate Chagigah, folio 15. This angel was expelled (temporarily) from the celestial regions and punished with sixty fiery strokes, in order to warn him not to fall victim to the same error as Elisha ben Avuyah on earth, who had arrived at the conclusion that Satan is an independent force in the universe rather than also a messenger carrying out missions on behalf of his Divine master. Rabbi Yehudah hachassid said that angels are punished with sixty lashes whereas human beings are not punished by more than forty (39) lashes, is that on earth already thirteen year olds qualify for such punishment, whereas such punishments are inflicted on over twenty year olds in the celestial regions. Just as 39 lashes on earth are three times thirteen so sixty is three times twenty.