Gather Australia being, well Australian, you are bound to come across songs by Christopher Willcock SJ. They will be musically interesting and best performed with pipe organ and well rehearsed choir.
I thought this was more usable than usual until some eclectic timings in the refrain. Apart from going too high for groaners like me it has lovely melodies and is very moving.
The text is in the preview at OCP who sell the sheet music here.