Paratext is designed to do the marking in the text of glossary items via the Biblical Terms tool. If you open any word in the Biblical Terms, you’ll see two tabs, the Renderings tab, and the Glossary tab. Using the Glossary tab, you can associate the biblical term with a key word in the glossary, and then you can have Paratext automatically mark the word in the text. For example, if you have a glossary term ‘apostle’, then linking the glossary tab for the word apostolos with the glossary entry, enables you to mark occurrences of the word apostle in the text automatically. This is done in the biblical terms tool, using the menu command Link Selected Renderings to Glossary under the Edit Menu, which then marks the term in the text itself with \w …\w*