Board Thread:Support Requests - Getting Technical/@comment-5175866-20151018212302/@comment-1757994-20151018233456

 $.getScript('https://www.biblegateway.com/public/link-to-us/tooltips/bglinks.js', function  {    BGLinks.version = "NIV";    BGLinks.linkVerses;  });

... will probably do what you want. Wikia's still not going to be too keen on off-site scripts being loaded in MediaWiki:Common.js.

After looking at the js
 * 1) it's obvious that it hasn't been run through jshint or jslint
 * 2) addedCSS is an internal Boolean that flags whether BGLinks.addCSS has run, which imports their css
 * 3) it seems that BGLinks.setup is supposed to initialize things (but I didn't look very hard)

You can write your own css, anyway, and import it with importArticles or just put it in MediaWiki:Common.css.