hide behind
He hid nothing; and his deeds and words matched.
Niemoeller and Bonhoeffer, there was a Bishop Dr. Ludwig Mueller of Berlin, an ARDENT Hitler supporter!
I'm not sure why you put the word "ardent" in capitals.
And of course you're referring to people at least a generation older than him. It's as if you're trying to tar him with a Nazi brush whereas the reality is that unlike most Germans then and many since, he stayed well clear of them and consistently opposed them even as a child (since that of course was what he was during that period).