Jesus, Paul and John warned of counterfeit spiritual activity and false doctrine in the last days - Christians will fall away. The following are observations from David Noakes - It is of vital importance in these days that we are alert to the dangers of false teaching. Those of us who teach must be diligent to declare the whole counsel of God; it was only on that basis that Paul was able to declare ‘I have not hesitated to proclaim to you the whole will of God’ (Acts 20:27). He was warning the Ephesian church elders to be equally diligent saying that we in the church need to re-examine our diet of the seemingly-endless flow of books and magazines, and to ensure that above all we are fully acquainted and familiar with the whole of the Bible. Only by knowing what is in God's word can we walk in safety.