One thing that is clear and which separates him from Saul is that when he is confronted after he sins, he repents. That is what makes him a king after God’s own heart and that is why he is a poor comparison with Trump or Zacharias, neither of whom as far as I know repented of their sins.
I do find unsettling what we are talking about here; that is, the uncritical loyalty shown to compromised leaders. I in particular find unsettling the uncritical loyalty shown to the former president that stems from an erroneous Christian nationalism. What I find hopeful are people like former Governor of Ohio John Kasich, Senator Ben Sasse, Congressman Adam Kinzinger, and other Christian politicians who stand up against this madness at personal cost. The same is true for others: thinking of people like Peter Wehner (New York Times; The Atlantic) and David French (The Dispatch).
— Read on overthinkingchristian.com/2021/02/19/king-david-modern-moral-failures-how-the-church-should-respond-tremper-longman-an-interview/