This is short and simple, but man – something to think about every single time you preach:

“No man can bear witness to Christ and to himself at the same time.  No man can give the impression that he himself is clever and that Christ is mighty to save.”

James Denney, a Scottish pastor, quoted in John Stott, Between Two Worlds: The Challenge of Preaching Today (Eerdmans, 1982), 325.