Demas (possibly shortened from Demetrius) was one of Paul's co-workers, mentioned alongside Luke and other faithful companions. Colossians and Philemon record him serving with Paul during an imprisonment, likely in Rome. However, 2 Timothy tells the tragic conclusion: 'Demas has deserted me, having loved this present world, and has departed for Thessalonica.' His story provides a sobering example of a ministry companion who ultimately chose temporal security or comfort over costly faithfulness to Christ and His gospel.