This is a webservice that returns a portion of scripture for given Bible reference; audio and Text NRSV Version
The webservice is invoked by a javascript snippet embedded into your webpage enclosed in the <body> tag right before the closing </body> tag.
The javascript snippet, scans the webpage creating links to the webservice of all identifiable Bible references. A viewer should pop-up when the links are clicked; providing a synchronized audio/text viewer of the Bible reference.
<script type="text/javascript" src="https://audiotextbible.org/bibleRefViewer.js" crossorigin="anonymous"></script>