2 Corinthians 1:15

And in this confidence I was minded to come first unto you, that ye might have a second benefit; and by you to pass into Macedonia, and again from Macedonia to come unto you, and of you be set forward on my journey to Judaea.

Paul's first purpose was to go via Corinth to Macedonia, and thence via Corinth again to Judea; but in 1 Corinthians 16:5, he wrote that this plan had given way to another, and that he proposed to go to Macedonia first. This was apparently the basis of the slander that Paul could not make up his mind, or that he was deceitful. If the plan made originally could have been carried out, it would have meant a double visit to Corinth, described by Paul here as "a second benefit."

Set forward on my journey ... This is a reference to the early custom of members of the congregation accompanying the apostle part of the way upon occasions of his departure, as in Acts 15:3; Acts 20:38; Acts 21:5 and in Romans 15:24.