2 Corinthians 8:22

22. Our brother Mr. Baynes makes it clear that St. Paul here designates Erastus. He was sent by Paul with Timothy to Macedonia. The result of their labours there before St. Paul’s arrival is described in 2 Corinthians 8:1-6. Erastus soon after this is at Corinth, (Romans 16:23,) and took his residence there, 2 Timothy 4:20. It is, indeed, objected that the Erastus of Romans 16:23 could not have been Paul’s companion at Ephesus, inasmuch as he was chamberlain of the city. But how long he had laboured with Paul at Ephesus is not said; and in being sent around by Macedonia, he was only going by a circuitous route home to Corinth. Chamberlain means treasurer, financier; and this will accord with Paul’s eulogy, that he had been diligent in many things; that is, efficient in many business matters. Or it may be thought that Paul, in giving his greetings to Rome, mentions Erastus’ official rank as formerly having been city treasurer.

More diligent… confidence in you Striking out the I have, inserted by the translators, we translate the passage, but now much more energetic from his much confidence in you. Erastus was all the more suitable for raising collections at Corinth from the fact that being himself a Corinthian he had full confidence of success.