Here’s an absurd logical conclusion to the idea that Christianity is primarily moral and only secondarily doctrinal.
“And without faith it is impossible to please him, for whoever would draw near to God must believe that he exists and that he rewards those who seek him.” (Hebrews 11:6)
Read: Minister Who Denies God’s Existence: I Don’t Appreciate Being Told I’m Not a Christian
The Misadventures of Captain Headknowledge 