[STCrowley]

Maybe this is too late, but my advice is to just start talking. . . start really simple with "where are you from" and "what's your name" and make notes to yourself about the mistakes you hear him make. (Some students freak out about notes, others like to see you 'working,' is my experience.) And go from there. A pastor should be a communicative person in general, so, with luck, you're job will be just to draw him out in English a little.