I need to have content appear when I scroll over certain words or groups of words. Eg. If I scroll over the word pastor. I should see a definition of Pastor appear next to the word.I would like to write in the definition myself.
In the past I've used a plugin called Tippy for ToolTips that brings up a box with your words when you mouseover. That said, if you search the plugins directory on the WordPress Codex for "tooltips" you'll find oodles of choices. Having just done so, I think WordPress Tooltips might be a good option for your needs. Good luck with the site.