But we have this treasure in jars of clay, to show that the surpassing power belongs to God and not to us.
2Cor. 4:7

Perhaps one of the marks of true apostleship and authentic ministry of God through Christ is suffering on display. I was going to say brokenness, but that really refers to problems in the person's life that are denied or ignored that cause pain. By suffering, I mean a life of human limitations that are acknowledged. It's never the great man of God, but always the great God of man, or we're in trouble.