John Stott commenting on Gal 3:1-3
"Grapho can sometimes mean to draw or paint, rather than to write, an pro can mean 'before' in space (before our eyes) rather than in time (previously). So Paul here likens his gospel-preaching either to a huge canvas painting or to a placard publicly exhibiting a notice or advertisement. The subject of his painting or placard was Jesus Christ on the cross. Of course it was not literally a painting; the picture was created by words,. Yet it was so visual, so vivid, in its appeal to their imagination, that the placard was presented 'before your very eyes'. One of the greatest arts or gifts in gospel-preaching is to turn people's ears into eyes, and to make them see what we are talking about'.
Pretty much sums up my philosophy of preaching... 3 point sermon anyone?