Paul honors men like Timothy and Epaphroditus (Phil 2); author of Hebrews honors men and women of faith (Heb 11). Anytime we honor human beings it should be because we see them glorifying our Lord in an admirable way. John Piper is my hero in the faith. I hear more people say things like that about him than anyone else. And I simply praise God for the way He has used Dr. Piper in my life and many others.
Please take time to watch this 20 minute documentary on one big way God shaped him.
The thing every single one of us should grab from this is that we really need to step up on how much we really think of the church as our family. It is not a metaphor. Brothers and sisters in Christ really are family.