Josephus does not tell us that Christianity is true, and Christians do not need Josephus to tell them that Christ is risen. But Christianity makes claims about things that happened in public history under identifiable rulers, priests, and governors. For that reason, testimony from outside the church matters.
Today, the longing for cultural Christianity on both the left and the right hearkens back to an older version of Christendom that was a mixed blessing for the church in the western world. The cultural mediation of Christian views on created order has certainly benefitted the civilization we’ve inherited. But the gospel itself isn’t something that can be reduced to cultural mediation either. Instead, the gospel as a message stands apart from all human accomplishments and achievements, no matter how beneficial they might be.
The student of Scripture should always have a map open next to their Bible as they read. If possible, they should also travel to Israel, not to make a pilgrimage, but to see the context of the land in which these stories took place. These are not fairy tales made up about fictional fantasy lands; these are stories about real people in real places interacting with a real God.

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This is an excerpt from the introduction of “Common Places in Christian Theology: A Curated Collection of Essays from Lutheran Quarterly,” edited by Mark Mattes (1517 Publishing, 2023).
We don't make Church "happen." Only Christ can do so. It's his happening.
Even if the numbers are bad, the news about Jesus crucified for sinners and raised to new life hasn’t become any less good.
There is a revival, no less real and even more definitive, taking place in every church, every weekend, where God’s people gather around his gifts.
Rightly distinguishing between law and gospel, as Paul helps us see in 2 Corinthians 3, is, quite literally, a matter of life and death.
Authentic proclamation, then, is the love of Christ for our souls, which we have seen and experienced through the under-shepherd’s pastoral care put into the words of Christ Himself.
The sign of the cross, according to the earliest centuries of Christians, is “the sign of the Lord,” and every baptized Christian was “marked” with it.
The law had to have its way with the expert to bring him around (and back) to Abraham's response.
The sermon takes place in the context of a multi-facetted set of relationships experienced through the weeks and months of being together in congregation and community. Those relationships shape the credibility of the preacher in the pulpit. 
Maybe, just maybe, our goal for 2023 should not be to live more but to die more.
Toy Story is indeed a Christmas story.
Despite our best efforts to avoid him, King Jesus remains very much unavoidable.