what 3 major beliefs were at the hear of Martin Luther's teachings?

The three major beliefs that were at the heart of Martin Luther's teachings are:

1. Sola Scriptura: Martin Luther believed in the authority of Scripture alone. He argued that only the Bible should be the source of Christian doctrine, and that religious authorities, such as the Pope, should not have the final say in interpreting the Bible. To understand this belief, one can read Martin Luther's writings and sermons, particularly his famous document called the "Ninety-Five Theses," which he posted on the door of the Castle Church in Wittenberg, Germany in 1517.

2. Sola Fide: Martin Luther emphasized the doctrine of justification by faith alone. He argued that salvation is not earned through good deeds or religious rituals, but rather it is a free gift from God. According to Luther, faith in Jesus Christ and his atoning sacrifice on the cross is the only means by which one can be justified and have a relationship with God. One can study Luther's theological works, such as "The Bondage of the Will," to gain a deeper understanding of this belief.

3. Priesthood of All Believers: Martin Luther advocated for the idea that all believers have equal access to God and do not need priests to mediate between them and God. He believed that every Christian has the right and responsibility to read and interpret the Bible for themselves. This belief challenged the authority of the Church hierarchy and emphasized the importance of individual conscience and personal relationship with God. To explore this belief further, one can examine Luther's teachings on priesthood in his writings and sermons.

Understanding Martin Luther's teachings requires studying his writings, sermons, and theological works. Reading primary sources like "The Ninety-Five Theses," "The Bondage of the Will," and other works by Luther will provide an in-depth understanding of his beliefs and contributions to the Protestant Reformation.