Paul had not founded the church in Colosse, nor had he visited it (Col. 1:1–8; 2:1). It is likely that the church started as a result of his ministry in Ephesus (Acts 19:10, 20, 26) and that Epaphras was the founding pastor (Philem. 23). The church met in the home of Philemon and Apphia, his wife. Some people assume that Archippus was their son, but this is not certain. He may have been the elder who took the place of Epaphras, who had gone to Rome to help Paul. If this is true, then it would explain Paul’s strong admonition to Archippus in Colossians 4:17, a letter written to the whole church.
In his greeting, Paul expressed his deep love for his Christian friends, and he reminded them that he was a prisoner for Jesus Christ (see also Philem. 9–10, 13, 23). Timothy was included in the greeting, though the burden of the letter was from the heart of Paul to the heart of Philemon. Paul’s ministry was a “team” operation, and he often included the names of his associates when he wrote his letters. He liked to use the term “fellow worker” (see Rom. 16:3, 9, 21; 1 Cor. 3:9; Phil. 2:25; 4:3; Col. 4:11).
The New Testament churches met in homes (Rom. 16:5, 23; 1 Cor. 16:19), and perhaps the church in Philemon’s house was one of two assemblies in Colosse (Col. 4:15). Paul had won Philemon to faith in Christ (see Philem. 19), and Philemon became a blessing to other Christians (Philem. 7).
It was customary for Paul to open his letters with words of thanks and praise to God. (Galatians is an exception.) In his thanksgiving, Paul described his friend as a man of love and faith, both toward Jesus Christ and God’s people. His love was practical: he “refreshed” the saints through his words and work.
Paul told Philemon that he was praying for him and asking God to make his witness effective (“the sharing of your faith”) so that others would trust Christ. He also prayed that his friend would have a deeper understanding of all that he had in Jesus Christ. After all, the better we know Christ and experience His blessings, the more we want to share these blessings with others.