וַיְהִ֗י בְּי֨וֹם דִּבֶּ֧ר יְהוָ֛ה אֶל־מֹשֶׁ֖ה בְּאֶ֥רֶץ מִצְרָֽיִם׃ (פ)
여호와께서 애굽 땅에서 모세에게 말씀하시던 날에
Rashi
And it came to pass on the day that the Lord spoke unto Moses in the land of Egypt: [This is connected with the following verse]
Ramban
AND IT CAME TO PASS ON THE DAY WHEN THE ETERNAL SPOKE UNTO MOSES IN THE LAND OF EGYPT. It is possible to explain that the verse refers to the one above.91Rashi and Ibn Ezra explain that Verse 28 here is connected with the following Verses 29-30: And the Eternal spoke unto Moses, saying…. Ramban finds this difficult to accept since the plain meaning would seem to indicate that Verses 29-30 constitute an independent section not connected with the preceding verse. Therefore he interprets Verse 28 as being connected with the preceding verse, as explained in the text. Scripture is thus stating: “And it came to pass that it was they — [Moses and Aaron] — who spoke to Pharaoh, king of Egypt92Verse 27. at the time when the Eternal spoke unto Moses in the land of Egypt.” For since Scripture said, These are that Aaron and Moses, to whom the Eternal said: Bring out the children of Israel from the land of Egypt,93Verse 26. it might have appeared that the communication came to both of them equally. Therefore it now explains [in Verse 28] that the communication came to Moses, and the command to bring them forth from Egypt was to both of them. This is why Scripture closed the chapter [of the genealogy of Moses and Aaron with this subject].
Kli Yakar
“And it was on the day when the Lord spoke to Moses, etc.” Rashi explained that this [verse] is connected to the following verse, and all other commentators criticized him saying, “If that is so, why is there a break in between?” I say that this [verse structure] is intended to teach us about the superiority of Moses our teacher’s prophecy over all other prophets. For all [other] prophecies come in night visions, as it is written, If there be a prophet among you, I the Lord will make Myself known to him in a vision, and will speak to him in a dream. Not so with My servant Moses, etc. (Numbers 12:6) For his prophecy was literally during the day, as our Sages learned (Yalkut Shimoni, Tzav 511) from the verse on the day when He commanded stated (in Parashat Tzav 7:38), that Moses was commanded all the commandments during the day. Therefore, it says here, And it was on the day — when it was actually daytime, then the Lord spoke to Moses in the land of Egypt. Since this was the beginning of his prophecy, therefore [the Torah] informs us that the beginning of his prophecy was during the day, and presumably all of Moses’ prophecies were during the day.