Martin Luther was primarily opposed to two major things.
The first was the sale of indulgences by the Catholic Church. This was a huge revenue stream wherein you could pay off your sins, no matter how large.
Next, Luther also believed that the Bible alone was the source of divine knowledge and that faith only saved, while the Catholic Church believed in a variety of divinely inspired texts and that faith + good works was the key to salvation.
Religion was more than very important to the people of this time. The church has a very high significant status before the revolution. As time went on religion was a big deal but not as big pre revolution so the churches lost their high social status though time and it kept going down as time went on.
