There is a tradition among Republicans to claim a Christian faith and sprinkle "God bless" and "thank God" into their speeches, to the extent that a secular European like myself finds it distracting. I would still be OK with it if they didn't do ungodly things in private and then disparage others for doing far lesser sins.
Their false image of godliness is now cracking. Adultery, pedophilia, grifting and treason against your country are incompatible with "Christian values" no matter how badly you read the Bible, and it runs contrary to basic human decency.
Behind a thin paint job aimed at fooling the most gullible voters, many Republicans are very far from good Christians, and some are in fact truly despicable people.