The Church and the Office of the Holy Ministry https://amzn.to/4iRapJH
Thesis I The Church in the proper sense of the word is the congregation of saints, that is, the entirety of all those who, called out of the lost and condemned human race by the Holy Spirit through the Word, truly believe in Christ and by faith are sanctified and incorporated in Christ.
Thesis II To the Church in the proper sense of the word belongs no wicked person, no hypocrite, no unregenerate person, no heretic.