4:14 communicate. By “communicate with my affliction,” Paul means “share [financially] with my pressures.” Only the Philippian church had sent this type of help to Paul, despite their own poverty (Philippians 4:15).
4:17 fruit. Thus spiritual “fruit” includes financial gifts to those of God’s servants spreading His Word and also to fellow believers in difficult circumstances.
4:17 account. “Account” is the Greek logos. “Testimony” is a better meaning here.
4:19 your need. That is, “your business,” or necessities for the business of the kingdom. Those who freely give will also receive (like the Philippians)—not their wants, but all they need for their service for Christ.