It adheres unreservedly to the historical confessions of the Lutheran Church: the Book of Concord of 1580, which they see as agreeing with Holy Scripture.
[1] The Lutheran Church in Spain has its origins in the time of the Protestant Reformation, but the Spanish Inquisition actively persecuted Lutherans and other Protestants because of their evangelical faith.
The church has a congregation in Asturias in northern Spain, and mission posts in Madrid, Catalonia, and Andalucía.
[3] The similarly-named Spanish Evangelical Church (Spanish: Iglesia Evangélica Española or IEE) is the result of the merger in 1869 of several Protestant churches—Congregationalists, Methodists, Presbyterians, and Lutherans—and is a union denomination.
The IELE, in contrast, forms relationships and partnerships only with other confessional Lutheran churches.