Sorry, this link might be broken.

https://theconversation.com/few-australians-know-the-second-verse-of-our-national-anthem-or-how-out-of-date-it-is-246678

The website may no longer be active, or the URL of the page may have changed.
It is possible that either https://archive.org/web or http://pandora.nla.gov.au have archived this content.

Thank you.