This script will scan the text of your webpage for verse references such as this: Romans 1:16-18 or Jhn 3:16. It will then link them and automatically create and enable the hover.

You can set your preferred translation and various other settings. The script will also detect valid translation abbreviations connected with the reference, such as: Zephaniah 3:17 ESV

Other reference styles that this will automatically catch are: Deut 8:2-6, 10, 17-18 and Genesis 1:26-28; 3:15.