Protestantism is a branch of Christianity[a] that emphasizes justification by God through faith alone, the teaching that salvation comes by unmerited divine grace, the priesthood of all believers, and the Bible as the sole infallible source of authority for Christian faith and practice. The five solae summarize the basic theological beliefs of mainstream Protestantism.
Protestants follow the theological tenets of the Protestant Reformation, a movement that began in the 16th century with the ...
