Acts 16:40

Acts 16:40. And they went out of the prison, and entered into the house of Lydia. Even after the magistrates had paid them the respect of an official visit, and had expressed their regrets, the apostles did not at once comply with their request, that in order to avoid any more popular tumult they should leave the place. We find them proceeding, in the first instance, to the home of Lydia, their hostess; there they met the believers in Jesus once more, and for the last time spoke to them the words of life. Timotheus and Luke seem to have stayed behind at Philippi when Paul and Silas left.

Some have supposed Luke remained at Philippi until Paul revisited Philippi on his second visit to Macedonia in the course of his Third Missionary Journey. After Paul left Philippi, the writer relates the story of his work as an historian in the third person until the second meeting, after which Luke writes as an eye-witness till the close of the Book of the ‘Acts.'