I grieve for their heresy, but I honestly think that, as a denomination, this reveals the judgement of God.
“For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who by their unrighteousness suppress the truth.
For what can be known about God is plain to them, because God has shown it to them. For his invisible attributes, namely, his eternal power and divine nature, have been clearly perceived, ever since the creation of the world, in the things that have been made.
So they are without excuse. For although they knew God, they did not honor him as God or give thanks to him, but they became futile in their thinking, and their foolish hearts were darkened. Claiming to be wise, they became fools, and exchanged the glory of the immortal God for images resembling mortal man and birds and animals and creeping things.
Therefore God gave them up in the lusts of their hearts to impurity, to the dishonoring of their bodies among themselves, because they exchanged the truth about God for a lie and worshiped and served the creature rather than the Creator, who is blessed forever! Amen.” - Romans 1
God knows the heart. And there are times where, if a man rejects God, God rejects him - while still in this life.
There comes a point in a denomination where, if it rejects God, God rejects them. Then any remaining there need to come away, and separate themselves as Noah was separated from an evil world.
yet, this is a recent denomination — formed in 1957 as a result of the merger between the “Evangelical and Reformed Church” and the “Congregational Christian Churches”