2 Corinthians 12

1 Paul again tells them that there is no real advantage to boasting, but he feels he has to in this case. God has given Paul an amazing ministry, but Paul goes on to say that he has been blessed with even greater personal gifts.
2 Paul speaks here in third person (verses 1 and 7 would indicate this).
5 This is only one of several visions that Paul received throughout his ministry. Paul keeps this account brief because this vision was for his personal benefit and does not build up the church. In addition, such visions are impossible verify externally, and are of questionable value to share. Paul refrains from sharing such things because he does not want people to see his as someone "specially" blessed by God. God can give visions to anyone.
6 Some people boast to puff themselves up. Paul's "boasting," however, is really the truth. He does not want to be put on a pedestal. He simply wants all people to love and follow God as he does.
7 Because even the best people are subject to pride, God gave Paul a particular weakness to keep him humble. Paul nowhere specifies the cause of the torment, and this was probably done on purpose. This keeps us sensitive to our own pride and weaknesses.Paul specifies that this particular problem was a messenger of Satan, and that God allowed this torment. God is more concerned with our spiritual condition than our physical comfort.
8 We often plead to God to remove pain from our lives, but if God does not remove the pain, then we must look to see how this can be used to glorify God.
9 Here God is telling Paul that His grace (i.e., salvation) is all that Paul needs. We often ask why bad things happen to good people. God does care about our pains, but our justification and life in Christ is far more important. Even as Christians, we suffer under the curse. This means we suffer pain and physical death. However, we have a great hope in Christ that the rest of the world does not have.Our weaknesses are important. If we are self-sufficient and comfortable, we do not seek God. However, when we recognize our weaknesses and need, we must turn to God who is the only one that can fulfill our needs. This is how God's power is perfected in weaknesses: weak vessels allow Him to work through them. Stubborn, proud, self-righteous, and strong-willed people are more difficult or impossible for God to use in a positive manner.
10 When God can work through us, it makes all our weaknesses and pain worthwhile. The only way we can really be strong is to allow God to live and work in us. Nothing is more powerful than God is, so if God is in us we are truly strong.
11 Even though Paul is no better than anyone else is, God has done extraordinary work through him. The so-called "super apostles" not only could not equal this, they were actually harming the Church. Certainly Paul's own converts should have been able to see what was happening.
12 The evidence was not just with numbers or great sermons, God used Paul to perform great miracles. All throughout history we have seen people amazed at God's miracles, only to forget them shortly thereafter.
13 Paul notes with irony that he was not a burden as the so-called "super" apostles had been.
14 Paul wants to assure then that he does not want to become a burden to them. Instead, he wants to keep giving to them.
15 What would we give up or spend to have someone come to know Jesus? Paul had given up everything, and he was being repaid with rebellion to the Good News that he spent so much to bring to them.
17 Neither Paul nor any of his representatives have taken advantage of their leadership position to gain money or power. In this way Paul proves to be a good leader.
19 Paul does not want the Corinthians to lose site of the real issue. It is not simply recognizing true authority, but it is recognizing and following Jesus.
20 When people do not meet our expectations, there is often trouble. Paul does not want differences to grow into greater sins.
21 Paul has been humiliated in many ways by people and circumstances. He does not want to be further humiliated after his earnest work and prayer for these people.