How did the confederate states justify secession? apex?

The Southern states said the Union was joined freely and they had the right to freely leave. Seven southern states seceded from the Union immediately after the election of Abraham Lincoln. The South was convinced that President Lincoln was going to end slavery.

United States had been formed by a voluntary joining of states

Explanation:

martin luther believed that selling indulgences was wrong and gave people a license to sin. the roman catholic church used the practice of indulgences to raise money for major building projects.