Acts 19:22

“So he sent into Macedonia, etc.] To Philippi, or Thessalonica, or Berea, or some of the places there, to let them know of his coming, and to prepare for him: two of them that ministered unto him; that were his assistants in preaching the Gospel: Timotheus and Erastus; the former of these was a disciple he found at Lystra, and took along with him, and to whom he afterwards wrote two epistles; and the latter seems to be the same with him, who was chamberlain of the city of Corinth, and is said to abide there, ( <451623>Romans 16:23, <550420>2 Timothy 4:20) The Ethiopic version, instead of Erastus, wrongly reads Aristarchus; whereas it is certain, he was not sent into Macedonia, but was with…”

“So he sent into Macedonia . . . Timotheus and Erastus--as his pioneers, in part to bring "them into remembrance of his ways which were in Christ" (Co1 4:17; Co1 16:10), partly to convey his mind on various matters. After a brief stay he was to return (Co1 16:11). It is very unlikely that this Erastus was "the chamberlain of the city" of Corinth, of that name (Rom 16:23). he himself stayed in--the province of Asia for a season--that is, at Ephesus, its chief city. (Asia is mentioned in contrast with Macedonia in the previous clause).”

“Timotheus - Timothy. He was a proper person to send there to visit the churches, as he had been there before with Paul, when they were established, Acts 16:3; Acts 17:14. And Erastus - Erastus was chamberlain of Corinth (Romans 16:23), or, more properly, the treasurer of the city (see the notes on that place), and he was, therefore, a very proper person to be sent with Timothy for the purpose of making the collection for the poor at Jerusalem. Paul had wisdom enough to employ a man accustomed to monied transactions in making a collection. On this collection his heart was intent, and he afterward went up with it to Jerusalem. See 2 Corinthians 8:9, and notes on Romans 15:25-26. Stayed in Asia…”

“Macedonia: Act 16:9, Act 16:10, Act 18:5, Act 20:1; Co2 1:16, Co2 2:13, Co2 8:1, Co2 11:9; Th1 1:8 that ministered: Act 13:5, Act 16:3 Erastus: Rom 16:23; Ti2 4:20 Acts 19:23”