fellow worker and fellow sodier

Philippians 2:9-30
Timothy served Paul as his father in the work of gospel. Paul hope send Timothy to Philippians. Paul may be cheer when he received their news.
Paul have no one else like Timothy, who takes a genuine interest in your welfare.
Paul knew how thing go with him.
Paul also send back Epaphroditus to Philippians, he is fellow worker and fellow soldier, who is your messenger, whom you sent to take care Paul's need.
Paul asked they welcome him in the Load with great joy, and honor men like him, because he almost die for the work of Christ,risking his life to make up for the help Philippians could not give him.
Why?
Timothy and Ephphroditus are worked for the gospel, and help to serve Paul. But Paul loves Philippians so send them back and send back there news. Paul may spare his sorrow upon sorrow.
Paul hope the people in Philippians joy for Paul's situation and those men they know and helped Paul very much. Timothy is a ambassador of Paul, for Paul might not be there.
In sending Ephphroditus  home, Paul is anxious to make it clear he has not fallen down on his job. Far from it.
How?
Paul has Timothy and Ephphroditus gave him great help in the work of God. Paul did not selfish to keep them with him. Paul also concern others interests. Learning the serves heart and altitude from Paul. Paul always cheers and joyful to serve the Load.
Do I  genuine interest in other's welfare?