Ever since there began to be two groups preaching and baptizing, there were those who wanted to set up a competition between them. In John 3:22-36, John the Baptist put an immediate stop to the idea of competition between Jesus and himself. His response provides not only pastors but all Christians with an excellent motto for our lives. (Here is a link to the full sermon notes.)
Timothy and Epaphroditus demonstrated the mind of Christ in the way they lived.
From all of eternity God held a secret, which he finally revealed through his church to all the heavenly beings.
While the Old Testament is still valid, we also have the message of the one who was raised from the dead.