So, all this is to say that I now have a thoroughly searchable library database, and I have it to share with others. Almost every volume of sermons has the individual sermons listed by text (Thanks to the meticulous work of my friend Ray). You have to figure out the best way to search for sermons, but if you simply use ctrl+f on Windows or Apple+f on Mac you should be able to breeze through the document. You also need to know that the sermons are numbered so that if you have a book of the Bible like 1 John you may need to make sure that you are not simply getting the number of the sermon (e.g. #11 John 10:5) in front of the sermon instead of the numeral 1 for the book. If that is confusing you can email me and I will try to explain it more carefully. I hope that this document will be a help to you as it is to me. If you ever need any sermon photocopied let me know and we can work something out.
You can find the Batzig Library Catalog here.
You can find the PCA Historical Center Reformed Sermon Index here.