Below are a number of links that you can follow for further reading on the ethics topics in the headings:

Same Sex Marriage:

Sandy Grant from St Michaels Wollongong has an excellent lecture on the no case.

http://wollongong.anglican.asn.au/sermons/public-marriage-lecture-2017/

Marriage alliance has some good resources and worth following

http://www.marriagealliance.com.au

John Anderson on ABC News.