Herrnhut in the context of "Bethlehem, Pennsylvania"

The Moravian Church, or the Moravian Brethren, formally the Unitas Fratrum (Latin: "Unity of the Brethren"), is one of the oldest Protestant denominations in Christianity, dating back to the Bohemian Reformation of the 15th century and the original Unity of the Brethren (Czech: Jednota bratrská) founded in the Kingdom of Bohemia, sixty years before Martin Luther's Reformation.

The church's heritage can be traced to 1457 and the Lands of the Bohemian Crown, which included Bohemia, Moravia, Silesia, and previously the Hussite movement against several practices and doctrines of the Catholic Church. Its name is derived from exiles who fled from Moravia to Saxony in 1722 to escape the Counter-Reformation, establishing the Christian community of Herrnhut. Hence, it is also known in German as the Herrnhuter Brüdergemeine [sic] ("Unity of Brethren of Herrnhut").

The Protestant Ethic and the Spirit of Capitalism (German: Die protestantische Ethik und der Geist des Kapitalismus) is a book written by Max Weber, a German sociologist, economist, and politician. First written as a series of essays, the original German text was composed in 1904 and 1905, and was translated into English for the first time by American sociologist Talcott Parsons in 1930. It is considered a founding text in economic sociology and a milestone contribution to sociological thought in general.

In the book, Weber wrote that capitalism in Northern Europe evolved when the Protestant (particularly Calvinist) ethic influenced large numbers of people to engage in work in the secular world, developing their own enterprises and engaging in trade and the accumulation of wealth for investment. In other words, the Protestant work ethic was an important force behind the unplanned and uncoordinated emergence of modern capitalism. In his book, apart from Calvinists, Weber also discusses Lutherans (especially Pietists, but also notes differences between traditional Lutherans and Calvinists), Methodists, Baptists, Quakers, and Moravians (specifically referring to the Herrnhut-based community under Count von Zinzendorf's spiritual lead).

A Moravian star (German: Herrnhuter Stern) is an illuminated decoration used during the Christian liturgical seasons of Advent, Christmas, and Epiphany representing the Star of Bethlehem pointing towards the infant Jesus. The Moravian Church teaches:

The Moravian star is popular in places where there are Moravian Christian congregations world wide. The stars take their English name from the Moravian Church, originating in Moravia. In Germany, they are known as Herrnhut stars, named after the Moravian Mother Community in Saxony, Germany, where they were first commercially produced. With the rise of ecumenism, the use of the Moravian star has spread beyond the Moravian Church to other Christian denominations, such as the Lutheran Church and Catholic Church, as well as the Methodist Church.