Some of them are very disturbing. Some Churches are solid as a rock theologically. They are founded on the word of God. They are without repentance regarding the Truths of the word.
Then there are churches where segments of the Church denominationally are solid. One such would be the dividing Anglican Church in America. Another would be the Catholic Churches. For those who trust the Word of God they are on solid ground. There may be others.
Sadly that is not the case with many liberal and mainline evangelical groups.
Most Pentecostal churches would be on solid ground, but even there deception can exist. I think it is good if they as a church are accountable to someone.
Conservative Reformed fellowships, Lutheran Churches Mo Synod and Wisconsin Synod would be hard to deceive. Seventh Day Adventists. Some Baptist, not all. Nazarenes.
Those are good solid well grounded fellowships.
Then there are others who wear other titles who are adrift.
I believe the difference is the spiritual gift of discernment and the esteem for the infallible word of the Living God in the Bible.
Without those two elements deception will come.
The enemy of faith is reason leading to relativism. That's why many Christians in the last election voted for people who are not Godly leaders. They are proving to be people who may even name the name of Jesus but without submission.
If these people do not repent the judgement on them will be double. It's coming. Watch out for the wolves in Sheep's Clothing standing up and leading people to perdition in churches. Get your spiritual gift of Discernment sharpened up. Study the word to be approved. If it doesn't pass thru the screen of God's word, it's bogus.
One other thing, I am NOT quick to condemn new expressions of radical Christianity. Some of the Emergent Church movement is of God. I am NOT ready to pillory Rick Warren or Willow Creek.
It's not them.
It's so called theologians and people with PhD's (Piled higher and deeper) who have become deceived by the books and classes they attend. The devil loves to mislead leaders. Then they do the work for him. Many Christian Colleges are filled with misleaders who have been misled.
Watch out, Mark them well, look carefully. Paul told us that:
17Now I beseech you, brethren, mark them which cause divisions and offences contrary to the doctrine which ye have learned; and avoid them.
18For they that are such serve not our Lord Jesus Christ, but their own belly; and by good words and fair speeches deceive the hearts of the simple.
19For your obedience is come abroad unto all men. I am glad therefore on your behalf: but yet I would have you wise unto that which is good, and simple concerning evil.
20And the God of peace shall bruise Satan under your feet shortly. The grace of our Lord Jesus Christ be with you. Amen.
I pray the God of Peace will Crush these misleaders from Satan under his feet shortly.