Attorneys appeared before the Seventh Circuit Court of Appeals in Chicago on Tuesday to present their arguments in the case of a cross display in downtown Evansville.
Last August, the West Side Christian Church and the City of Evansville appealed a federal judge's ruling blocking the display on public property.
The judge ruled that the display would be an unconstitutional endorsement of religion by the city.
Lawyers for the church have argued the display is a freedom of speech issue.
Each side had 20 minutes to make their case during Tuesday's hearing.
Representatives for the church argued that the crosses are the same thing as the United Way displays of the past.
When questioned about that argument, the attorney said a reasonable observer walking past 30 crosses along a four block area would not necessarily think Christianity.
It will likely be several months before the judges issue their ruling.