Fundamentalism [Ephesians 2 v20]

The NEB ,entitles 1 John,' Recall to fundamentals', as a Christian ,the fundamentals ,are the foundation on which I build my faith. What I believe as a Christian, is of vital importance, the fundamentals, the foundation of the Christians faith, we are told in Ephesians 2 v20, is built on,the apostles,
and prophets, and Jesus Christ who is the cornerstone, the cornerstone holds everything together, take that away and everything  will collapse. There is a tendency for some Christians to ignore the Old Testament, I recently preached on the book of Zechariah, and I said ,how I have never heard many sermons from that wonderful book. That goes for many of the OT books, a brother told me that he avoided the OT because of the violence in it. There is awful violence in it, but there are valid reasons,why God dealt with people,in such a way. In 2 Timothy 3 v16,we read,' All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction,for instruction in righteousness, that the man of God may be complete,thoroughly equipped for every good work.' John Stott wrote,'[All]Scripture is God breathed and profitable. Even in the midst of these grievous times in which evil men and impostors go from bad to worse. It can make you complete and it can equip you for your work. Let the word of God make you a man of God, remain loyal to it and it will lead you on into Christian maturity'.
                                        A  prayer.
Dear God we thank you for all your word ,grant that we may not stray from it, in Jesus name Amen.