2 Corinthians 1:16

“And to pass by you into Macedonia, etc..] It was his first intention and determination to have come first to Corinth, and then to Macedonia, to have took this city in his way thither; which was an argument of his love to them, and his great desire to see them; since he might have gone, as he did, a nearer way to Macedonia, than by Corinth: and to come again out of Macedonia to you; when he had gone through that, and done his business there unto the Corinthians; and after some stay with them, of you to be brought on my way towards Judea; where he intended to go, with the collections he had made for the poor saints at Jerusalem, in the several churches in Asia; but though this was his first…”

“This intention of visiting them on the way to Macedonia, as well as after having passed through it, must have reached the ears of the Corinthians in some way or other--perhaps in the lost Epistle (Co1 4:18; Co1 5:9). The sense comes out more clearly in the Greek order, "By you to pass into Macedonia, and from Macedonia to come again unto you."”

“And to pass by you - Through δι ̓ di' you; that is, through your city, or province; or to take them, as we say, in his way. His design was to pass through Corinth and Achaia on his journey. This was not the direct way from Ephesus to Macedonia. An inspection of a map will show at one view that the direct way was that which he concluded finally to take - that by Troas. Yet he had designed to go out of his way in order to make them a visit; and intended also, perhaps, to make them also a longer visit on his return. The former part of the plan he had been induced to abandon. Into Macedonia - A part of Greece having Thrace on the north, Thessaly south, Epirus west and the AEgean Sea east; see…”

“and to come: Act 19:21, Act 19:22, Act 21:5; Co1 16:5-7 2 Corinthians 1:17”