A free church is any Christian denomination that is intrinsically separate from government. A free church neither defines government policy, nor accept church theology or policy definitions from the government. A free church also does not seek or receive government endorsements or funding to carry out its work. The term is only relevant in countries with established state churches. Notwithstanding that the description "free" has no inherent doctrinal or polity overtones. An individual belonging to a free church is known as a free churchperson or, historically, free churchman.

Mennonites are a group of Anabaptist Christian communities tracing their roots to the epoch of the Radical Reformation. The name Mennonites is derived from the cleric Menno Simons (1496–1561) of Friesland, part of the Holy Roman Empire, present day Netherlands. Menno Simons became a prominent leader within the wider Anabaptist movement and was a contemporary of Martin Luther (1483–1546) and Philip Melanchthon (1497-1560). Through his writings about the Reformation Simons articulated and formalized the teachings of earlier Swiss Anabaptist founders as well as early teachings of the Mennonites founded on the belief in both the mission and ministry of Jesus. Formal Mennonite beliefs were codified in the Dordrecht Confession of Faith (1632), which affirmed "the baptism of believers only, the washing of the feet as a symbol of servanthood, church discipline, the shunning of the excommunicated, the non-swearing of oaths, marriage within the same church", nonresistance, and in general, more emphasis on "true Christianity" involving "being Christian and obeying Christ" as they interpret it from the Holy Bible.