In our contemporary U.S. American society and culture, the name "Mennonite" often causes a strange reaction: a wrinkled nose, a hard-focusing brow, a cautious gaze, and the question, "Is that like an Amish person? Do you ride in buggies?" While there are many types of Mennonites, churches like South Union are no longer distinguished from the society at large by dress, or by technology preferences, or by cultural/ethnic traditions, but are a people marked by a particular way of looking at Scripture and following Jesus. If you were to walk into our church on a given Sunday morning, it would look very much like other churches. For example, our congregation dresses in anything from formal attire to business casual to casual. Most people have cellphones, and no one has a horse parked out front.
So, what exactly makes a "Mennonite?" Historically, there are certain cultural and ethnic traditions that are associated with Mennonites, but these are slowly falling away to become more inclusive to those not raised Mennonite. The easiest way to describe Mennonites is to simply say that we call ourselves by the name of someone whose leadership and theology had a profound impact on the beginning of our Christian movement. For example, "Lutherans" are called Lutherans because they plant themselves firmly in Martin Luther's shadow, i.e. his way of seeing Scripture and doing church. Calvinists likewise plant themselves firmly in the shadow of John Calvin. Mennonites plant themselves in the shadow of Menno Simons, a leader and theologian who entered the Anabaptist movement in one of its earlier stages. He helped shape and frame the beliefs and way of being church for early Anabaptists.
I hear you asking, "Wait what? What's an Anabaptist?" During the Reformation (the time period where Luther hammered his 95 Theses to reform the Catholic Church and who was one of the translators to make the Bible accessible to the everyday German speaking person thanks to the printing press) the Anabaptists were those folks who read the Bible and said, "Whoa! We are not following Jesus as closely as we should! Look at what is in the Sermon on the Mount! Look what the Great Commission says! We must do this!"
In response, the Anabaptists began to follow Jesus very seriously, agreeing with Luther that people were "saved by grace through faith," but also that a transformed life (one that looks more like Jesus everyday) should be the result of salvation. This led the Anabaptists on a path of establishing a new community, of being "re-baptized" to show their committed choice to Christ as adults (instead of as babies), and of being devoted to following Jesus' teachings as closely as possible. One serious claim is "Jesus is Lord and Savior," which means our first allegiance is always exclusively to Jesus over or against government, city, nation, tribe, family, etc.
In summary, Mennonites are the heirs of one stream of Anabaptism led by Menno Simons. While we no longer have the strict cultural and ethnic traditions binding us, we still take very seriously the teachings of Jesus Christ, the Bible, and our role as a community, that is to say, the church.
Here is a link to our confession of faith 1995: