A lay led service was held at St Matthew on the 20th Sunday after Pentecost with a sermon presented based on a sermon by Pr Vince Gerhardy which can be read at: http://www.gerhardy.id.au/pent18_11.html
Matthew 22:19–21 (NIV)
19 Show me the coin used for paying the tax.” They brought Him a denarius, 20 and He asked them, “Whose image is this? And whose inscription?”
21 “Caesar’s,” they replied.
Then He said to them, “So give back to Caesar what is Caesar’s, and to God what is God’s.”