Orthodoxy, heterodoxy, and unionism. God prohibits church fellowship with heterodox churches. Why? True and false cannot exist with equal standing. If true allows for false, true ceases to be true. Learn more about this and other reasons why the orthodox church is not to fraternize with those who teach contrary to Scripture.

Find the resource about President Pieper at concordiahistoricalinstitute.org/presidents/president-pieper.

This program originally aired on November 5, 2022.