The question sometimes arises of whether there is a difference between teaching and preaching. If there is, it is very minor. Jesus both taught and preached (Matt. 4:23) and the Apostle Paul described himself as both a preacher and a teacher of the gospel (Tit. 1:3; 2 Tim 1:11) . . . There was probably a good deal of overlap.”
Stott, The Challenge of Preaching, pp. 23-24