Acts 16 records Paul's response to the vision of the "Macedonian call" (Acts 16:6-10). In Philippi, a city in Macedonia, Paul was imprisoned and found opportunity to preach the gospel to a jailor. The account of the Philippian jailor's conversion is instructive in many ways (cf. Acts 16:25-34). The urgency of obedience to the gospel in the account is especially apparent.