Jehovah Witnesses.
Sadly there are to many religious sects in the world today, many claim to witness for Gods name Jehovah. But most are about financial gain and having power over weak people, who then can be exploited and mentally abused.
It is reported in various media outlets that the pop star Prince refused medical examination, because he believed that praying to God would heal him? The bible does not teach the refusal of medical attention, since the Gospel writer Luke was a physician.
But some cults and cultic groups twist the scriptures of the bible to suit their own misunderstandings. The Apostle Paul talked about this warning believers of these dangerous errors.
Acts 8:30-31, 28:26-27, 1 Corinthians 2:14, 1 Timothy 1:7, Jude 1:10.
Ask me and I will tell you! 