Paul's boasting before the judgment seat of Christ

Paul tells asks the Thessalonians "what is our hope or joy or crown of boasting before our Lord Jesus at his coming? Is it not you?" (1 Thessalonians 2:19).

Similarly he finds the Philippians his "joy and crown" too (Philippians 4:1). But on Judgement Day Paul will even boast about the Corinthian church (2 Corinthians 1:14), for all their problems.

When he says that "we must all appear before the judgment seat of Christ, so that each one may receive what is due for what he has done in the body, whether good or evil" (2 Corinthians 5:10), I think the context demands we see "what he has done" as primarily the results of his missionary work. If that is the case it is striking how 2 Corinthians 5:1-10 parallels Philippians 3:20-4:1. In both Paul looks forward to Christ's second coming, bemoans his current mortal body, but anticipates receiving a new resurrection body, and finally looks forward to boasting in the churches he has planted.