The apostle"s reference to his present sufferings ( Philippians 2:17-18) led him to tell the Philippians about his plans. He wanted to send Timothy and Epaphroditus to Philippi. He said things about those two faithful fellow workers that would assure their warm reception when they arrived. Paul"s descriptions of them have lasting value because they were such good examples of men who possessed the mind of Christ. They were, therefore, true partners in the gospel. [source][source][source]
"In this epistle every single reference Paul makes to another person is made in connection with that person"s koinonia, his partnership in the gospel. Timothy and Epaphroditus, except for Paul himself, stand as the most prominent of these." [1][source]