Acts 2:5

“And there were dwelling at Jerusalem, Jews, etc.] The Ethiopic version adds, “proselytes”; but they were not all such, as appears from the following account of them; many, and it seems the most of them were of Jewish extract and descent, and others were proselytes to the Jewish religion: these were not natives of Jerusalem, but such as were born in other countries, (<440208>Acts 2:8) but were come to Jerusalem, either to learn the Hebrew language, which was necessary to their reading and understanding the books of Moses, and the prophets written in it; or for an increase of spiritual knowledge and piety; or, as is generally thought, to keep the feast of Pentecost; or rather, as Dr. Lightfoot…”

“there were dwelling at Jerusalem Jews, devout men out of every nation--not, it would seem, permanently settled there (see Act 2:9), though the language seems to imply more than a temporary visit to keep this one feast.”

“There were dwelling at Jerusalem - The word rendered “dwelling” - κατοικοῦντες katoikountes - properly means to have a fixed and permanent habitation, in distinction from another word - παροικοῦντες paroikeountes - which means to have a temporary and transient residence in a place. But it is not always confined to this signification; and it is not improbable that many wealthy foreign Jews had a permanent residence in Jerusalem for the convenience of being near the temple. This was the more probable, as about that time the Messiah was expected to appear, Matthew 2:0. Jews - Jews by birth; of Jewish descent and religion. Devout men - ἀνδρες ἐυλαβεῖς andres eulabēis. Literally, men of…”

“And there were dwelling in Jerusalem Jews - Gathered from all parts by the peculiar providence of God. Acts 2:6”

“2:5-11 Because Pentecost was a pilgrimage festival (see study note on 2:1-4), Jews from every nation were present in Jerusalem at that time and were thus able to hear the Good News being proclaimed in their own languages. The Good News is for all people (2:38-39).”

“were: Act 2:1, Act 8:27; Exo 23:16; Isa 66:18; Zac 8:18; Luk 24:18; Joh 12:20 devout: Act 8:2, Act 10:2, Act 10:7, Act 13:50, Act 22:12; Luk 2:25 under: Deu 2:25; Mat 24:14; Luk 17:24; Col 1:23 Acts 2:6”