I created a ebook - compiled to mobi format. Some of the pages with scripture references are linked to biblia.com but some pages do not. I don’t know what I did to create such a link - but would like to be able to do it for all the pages. Any body have a clue? (I don’t).
Scrivener does support hyperlinks in the text. You should compare the sections of your e-book file which do have links, to the original text in Scrivener and see if there are any blue text links in there. It could be that whatever you pasted from originally had the hyperlink embedded in the rich text, but from other sources they did not, which is why you now have a mix.
It’s easy to make a link. Just select some text and use Edit/Add Link…, and paste in the URL.