Christopher Moore!
Christopher Moore is a comedy writer, whose stories usually have a supernatural or angelic or demonic (sometimes, all of the above) slant. I particularly enjoyed “Lamb: The Gospel According to Biff, Jesus’ Best Friend.” I have had a priest declare that it was “probably not sacriligeous.”
You may want to approach his books carefully. Usually even funny books are only worht a snort or a snigger while reading them but I laughed out loud while reading “Lamb” five times — a record for me!