The Catechism in Questions & Answers

43. What is the content of the Third Article of Faith?

The Third Article of Faith professes belief in the Holy Spirit, that is, the third person of the Godhead, as well as belief in the church, the community of the saints, and further salvation.

Holy Spirit: see Questions 37. and 197. et seq.

In the narrower sense, the “community of the saints” includes all believers who are reborn out of water and the Holy Spirit, who allowed themselves to be prepared for the day of the Lord by the Apostles of Jesus Christ, and who are accepted by Him as His bride. Those who belong to this fellowship will only be revealed at the return of Christ. In the broader sense, the “community of the saints” includes all those who are numbered among the church of Christ. The term thus refers to all those who already today receive salvation from Jesus Christ. The “community of the saints” will be revealed in its completion and perfection in the new creation.