Bultmann forgets about Christ. Rudolf Bultmann is probably the twentieth-century’s leading Protestant theologian, though some would give that title to Karl Barth. It hardly matters. The point is that Bultmann has been remarkably influential.
Perhaps his greatest influence has been on how to think about the kerygma (κήρυγμα), the message of the gospels. Bultmann is not subtle.
We cannot use electric lights and radios and, in the event of illness, avail ourselves of modem medical and clinical means and at the same time believe in the spirit and wonder world of the New Testament. (New Testament and Myth, loc 107)
Miracle healings, walking on water, lots of bread and fish, heaven as up there—all that is part of the myth. How to distinguish the myth from the message without adopting Thomas Jefferson’s Deism, in which God becomes a distant watchmaker, someone who created the world, and has since stepped away? * How can kerygma still live?
Kerygma: the experience and the message
What remains is faith, and faith begins in wonder. Not in miracles, but in the experience of the sublime, “the beginning of terror that we are still just able to bear.” (Rilke) Kerygma is not just, or even primarily, about the message of the gospels. It is an encounter with God. Not with Christ, for Christ is a historical reality (Ladd, p 96). Kerygma is a pre-verbal encounter with the wholly other (Congdon, pp 23-24, 74). It can happen in an encounter with beauty, or in the experience of being alive after a close encounter with death. Boundary or limit experiences they are often called.

The Resurrection. Many liberal Protestants seem slightly embarrassed about the resurrection, as if it were part of the magical mystery world of the New Testament. Or at least this is what Wikipedia says. For most Christians, however, resurrection remains the central doctrine of Christianity (Evans, p 29). Believing in the resurrection is tantamount to being a Christian. I suppose I come closer to being a liberal Protestant, but the resurrection is more complicated than reflected by these two categories.
Is Paul anti-Semitic? Does God play fair?
The Protestant Reformation was not all great. The Reformation (16th and 17th centuries), initiated by Martin Luther, is credited with the creation of the individual, and fostering the Enlightenment. This is the usual sketch, and its correct as far as it goes. I’m going to look at the good parts and the not so good parts. First, the good parts.*
Spiral Staircase, by Karen Armstrong: one of the best books on religion I’ve read.
Why the Bible is subtler than Homer or Plato. I taught ancient political theory for 38 years. More than any single thing I learned, what remains is the insight (hardly mine alone) that Western civilization is the conjunction of Athens and Jerusalem. The way we think even today is a combination of the rationality of the Greeks with the transcendent vision of The Bible.
Genesis: the snake had a point. There is more than one way to read Genesis. One is to read it as an account by God dictated to Moses. That seems unlikely, but it’s a view widely held among the very religious. Certain problems, like the earth being created in 7 days, are dealt with by transforming days in eons. Some small amount of metaphor allowed.
Leszek Kolakowski, socialist and Christian. Kolakowski was a polish intellectual who died in 2009. He is most well-known for his critical analysis of Marxism, but he was hardly a Western liberal. His political position, and only his political position, could be compared to that of Bernie Sanders. In other words, he was a democratic socialist. When Poland was a satellite of the Soviet Union, Kolakowski was effectively exiled, spending the next forty years at prestigious universities in the West. Even, or especially in exile, he was a leading thinker of the Solidarity movement.