What can I or my Congregation do to think about this topic?
The Assembly Standing Committee has approved the following set of resources - six short discussion starters we call "Doc.bytes" - to assist Church members and the wider public in their understanding of the underlying questions behind the 15th Assembly's decision on marriage.
The Uniting Church was invited into a conversation about marriage in the 2015-218 Triennium of the 14th Assembly. The President at the time Stuart McMillan encouraged members to engage in respectful conversations. A process called Space for Grace was used by the Assembly to facilitate culturally appropriate conversations. This process has been written up for anyone to use in their own settings.
Other resources you might like to draw upon include the reports created along the path our Church has taken in its discussions on marriage and sexuality: