2 Corinthians 11:16-33

v16-21: "In obedience to the command and example of the Lord, Christians must and ordinarily will humble and deny themselves.  But wisdom must guide them as to the circumstances in which it is necessary to do what we may do lawfully, including speaking of what God has done for us, in us, and by us."

v22-33: Paul did and suffered so much for the cause of Christ.  But what lay heaviest on him, more than all the persecutions of his enemies and the great toil and hardship he went through, was his concern for all the churches.  It is a great blessing to have leaders who care for the souls of church members, and which this responsibility lays heavy on them.