Just as it was happening back in the day of Paul, so it is still happening today... He wrote that letter to the church of Corinth to correct the church because its error was affecting the foundation. We to need to return to what scripture says and away from anything that confuses it.
1 Corinthians 14 v33 (KJV)
For God is not the author of confusion, but of peace, as in all churches of the saints.