The Third Article of Sanctification: “I believe in the Holy Spirit,” etc.
A Simple Way to Pray By Martin Luther
This is the third great light which teaches us where such a Creator and Redeemer may be found and plainly encountered in this world, and what this will all come to in the end. Much could be said about this, but here is a summary: Where the holy Christian church exists, there we can find God the Creator, God the Redeemer, God the Holy Spirit, that is, him who daily sanctifies us through the forgiveness of sins, etc. The church exists where the word of God concerning such faith is rightly preached and confessed.
Again you have occasion here to ponder long about everything that the Holy Spirit accomplishes in the church every day, etc. Therefore be thankful that you have been
called and have come into such a church. Confess and lament your lack of faith and gratitude, that you have neglected all this, and pray for a true and steadfast faith that
will remain and endure until you come to that place where all endures forever, that is, beyond the resurrection from the dead, in life eternal.