About one thousand different sects claim to be authentic "biblical Christians" or "1st century Christians."
The Primitive Baptists, the LDS, Oneness Pentecostals, Orthodox Presbyterians, United Church of God, the Church of Christ, the Disciples of Christ, Iglesia ni Cristo, the Marcionists, and many, many others love to make or have made this claim.
Yet they all have deeply different beliefs and distinctives.
Very few people, however, realize how radically arrogant this claim is.
I'm certainly not an expert in the doctrine or beliefs of any of those groups so I won't attempt to speak for them.
Very few people, however, realize how radically arrogant this claim is.
The overwhelming feeling in my experience is gratitude to the Lord for opening my heart. I don't have any control over how following the instructions of Lord in scripture is perceived by anyone else. If my attitude is one of arrogance then I will ask for more humility and forgiveness.