I hope therefore to send him just as soon as I see how it will go with me, (Philippians 2:23, ESV)This trustworthy servant, Timothy, who has been like a son to Paul, is being sent to the Philippian Church. He isn't being sent right away, Paul is going to detain him long enough to be able to send him with news of Paul's situation.
The sending of Timothy shows Paul's concern for the Philippian Church. He wants someone to be there for them. He also wants to make sure that he can send him along with information that he knows they want.