I think many of you might be familiarized with Mark Dever’s 9 marks of a healthy church. Nevertheless, today I’d like you introduce you all to the marks of a church according to Martin Luther.
1. The word
“First, the holy Christian people are recognized by their possession of the holy word of God. And even if there were no other sign than this alone, it would still suffice to prove that a Christian, holy people must exist there, for God’s word cannot be without God’s people, and conversely, God’s people cannot be without God’s word.”
2. Baptism
“God’s people or the Christian holy people are recognized by the holy sacrament of baptism, wherever it is taught, believed, and administered correctly according to Christ’s ordinance.”
3. The Lord’s supper
“God’s people, or Christian holy people, are recognized by the holy sacrament of the altar, wherever it is rightly administered, believed, and received, according to Christ’s institution. This too is a public sign and a precious, holy possession left behind by Christ by which his people are sanctified so that they also exercise themselves in faith and openly confess that they are Christian, just as they do with the word and baptism.”
Discipline
4. “God’s people or holy Christians are recognized by the office of the keys exercised publicly. That is, as Christ decrees in Matthew 18:15– 20, if a Christian sins, he should be reproved; and if he does not mend his ways, he should be bound in his sin and cast out. If he does mend his ways, he should be absolved. That is the office of the keys.”
5. Biblical offices
“The church is recognized externally by the fact that it consecrates or calls ministers, or has offices that it is to administer.”
6. Worship
“The holy Christian people are externally recognized by prayer, public praise, and thanksgiving to God. Where you see and hear the Lord’s Prayer prayed and taught; or psalms or other spiritual songs sung, in accordance with the word of God and the true faith; also the creed, the Ten Commandments, and the catechism used in public, you may rest assured that a holy Christian people of God are present.”
7. Suffering
“The holy Christian people are externally recognized by the possession of the sacred cross. They must endure every misfortune and persecution, all kinds of trials and evil from the devil, the world, and the flesh.”
Source: Luther’s works Vol.41