What does Acts 20:2 mean?
After three years establishing the church in Ephesus (Acts 20:31), Paul has now returned to Macedonia where he had planted churches during his second missionary voyage.His first stop, likely, is Philippi where Lydia, a cloth merchant, had helped him establish a church in a city with no significant Jewish population (Acts 16:11–40). His next stop would probably have been Thessalonica where the Jewish leaders had not only run him out of town, but they also followed him to Berea and drove him from faithful scholars there, as well (Acts 17:1–15).
On that second voyage, from Berea, Paul escaped to Athens in Greece. He spent several days in the synagogue and the marketplace, teaching about Jesus, before getting into a debate with the Stoic and Epicurean philosophers (Acts 17:16–34). It's not clear if Paul returns to Athens now, but we know he is eager to get to Corinth.
Paul seems to have intended to visit Corinth as soon as he left Ephesus, but between the divisions they fell into and their lack of church discipline, he delayed before seeing them (1 Corinthians 1:11–17; 5:1–8; 2 Corinthians 1:15–23). Or, he did make a visit which did not go well (2 Corinthians 2:1).Titus has brought Paul news that the church in Corinth repents of their sins and longs to see him again (2 Corinthians 7:5–9). When Paul finally reaches Corinth, he stays for three months (Acts 20:3).