Giving a sermon through WordPress seems farfetched, but it is more common than you think. There are two specific plugins that are available to allow for such a feat to be accomplished.
The Sermon Browser – This is a very nice plugin tool that allows a church to upload a sermon to their WordPress site. This also catalogues and makes the sermon easily searchable and ready to download from the server for people to listen to.
WordPress Sermons – This is another great plugin for churches which have sermons that are recorded into MP3 format to upload and share to anyone that wishes to enjoy the sermon from home.