Miller has spoken before rallies, churches and schools in 47 states and five countries.
He uses humor to tackle serious topics. He stated he is excited to come to Brazil to join with others to stand for "religious freedoms."
The Religious Liberty and Life Rally is categorized as a celebration.
Churches from across the area are joining together to celebrate and proclaim religious freedom as given through the First Amendment and to celebrate life.
The rally will consist of prayer, music and speakers, including Pastor Paul Cooper of Marshall Baptist Church and vice chairman of Wabash Valley Right to Life, Father John Hollowell of Annunciation Church, Mark Thompson of First Baptist Church, and Miller.
The Religious Liberty and Life Rally is taking place in conjunction with the annual Life Chain event, which will begin at 2 p.m., on the Clay County Courthouse lawn.
Following the rally, there will be a hog roast next to the courthouse on Alabama Street.
The Life Chain and rally are free.
Cost for the hog roast is $5 per person.
The public is invited to attend all three events.