Wikipedia
A National church is a Christian church associated with a specific ethnic group or nation state. The idea was notably discussed during the 19th century, during the emergence of modern nationalism.
Samuel Taylor Coleridge, in a draft discussing the question of church and state around 1828 wrote that
"a National Church might exist, and has existed, without [Christianity], because before the institution of the Christian Church - as [...] the Levitical Church in the Hebrew Constitution, [and] the Druidical in the Celtic, would suffice to prove".John Wordsworth, bishop of Salisbury, wrote about the National Church of Sweden in 1911, interpreting the Church of Sweden and the Church of England as national churches of the Swedish and the English peoples, respectively. Lake (1987) traces the development of Presbyterianism in 16th-century England from the status of a "godly minority" which saw itself surrounded by the corrupt or hostile mass of the population, into a "genuine national church".
The concept of a national church remains alive in the Protestantism of England and Scandinavia in particular. While, in a context of England, the national church remains a common denominator for the Church of England, some of the Lutheran "folk churches" of Scandinavia, characterized as national churches in the ethnic sense as opposed to the idea of a state church, emerged in the second half of the 19th century, following the lead of Grundtvig. However, in countries in which the state church (also known as the established church) has the following of the majority of citizens, the state church may also be the national church, and may be declared as such by the government e.g. Church of Denmark, Church of Greece, Church of Iceland.
Usage examples of "national church".
But the boy died before he was sixteen, and was succeeded by his sister Mary, the wife of Philip II of Spain, who burned the bishops of the new ``national church'' and in other ways followed the example of her royal Spanish husband.
They used the religious doubts and insurgence of their peoples to strengthen them against Rome, but they tried to keep a grip upon the popular movement as soon as that rupture was achieved and a national church set up under the control of the crown.
I suppose you have a sort of national church with official clergymen.
Perhaps you think he was not--as he ought to have been--a living demonstration of the benefits attached to a national church?