Some well-reviewed sermons based on Matthew 22:15 include the sermon "Whose Image? Whose Treasure?" by Jeff Strite and "In Whose Image?" by J Jeffery Smead. SermonCentral.com offers these sermons and over 70 more based on Matthew 22:15, arranged based on user rating. Both of the aforementioned sermons have five-star ratings.
SermonCentral.com is one of the largest sermon sites, with access to over 100,000 Christian sermons. Strite's sermon on Matthew discusses Jesus' stance on paying taxes to Caesar in which Jesus said, "Give to Caesar what is Caesar's, and to God what is God's." This sermon can be related to separation of church and state.