Albert Barnes Commentary 1 Corinthians 16:5

"But I will come unto you, when I shall have passed through Macedonia; for I pass through Macedonia;" — 1 Corinthians 16:5 (ASV)

Now I will come unto you. I intend to come to you. He had expected to see them on his way to Macedonia, but for some reason, had been led to abandon that plan. (See Barnes "2 Corinthians 1:16"; See Barnes "2 Corinthians 1:17").

When I shall pass through Macedonia. When I will have passed through Macedonia. He proposed to go to Macedonia first, and, having passed through that country visiting the churches, to go to Corinth. (For the situation of Macedonia, see Barnes "Acts 16:9").

For I do pass through Macedonia. I intend to do it. It is my present intention. Though he had abandoned, for some reason, the plan of passing through Corinth on his way to Macedonia, yet he had not given up the plan itself. It was still his intention to go there.