Today, reading in the forum I came across the expression "a true New Testament Church."
I suppose there is such a thing today, but I hope all who call on the name of Yeshua, Jesus, are versed enough in the history of our progress from the time our Lord walked His earth to know the original converts to the faith of Abraham did not have a New Testament, and it is probably a good thing for them they did not.
You see the pagans, the nations, had to learn the concept of what a sin is. In order to learn this they were taught by the Twelve plus Paul from the Torah, the Writings, and the Prophets.
They had to understand about atonement, and exactly what they needed to atone for. They were taught all about the history of the faith of Abraham and the law, for sin is transgressing the law.
They also learned of all the prophesies of Yeshua, Jesus, in these same writings beginning in Genesis all the way through to Malachi. It must have been fascinating and glorious to learn all that the Jews knew and much they did not for not accepting Messiah. These people were of the faith of Abraham, from that other flock our Lord taught us of which He was to have brought together with His original flock. We are now one with our Lord and the faith of Abraham.
The Holy Scripture comprising the New Testament is the recounting of how Yeshua, Jesus, fulfilled all the prophesies of Messiah and all the teachings from the Law. As per the law, He completed the law for all who call upon Him in Spirit and Truth by taking the curse of the law with Him on the cross. That curse died as far as we are concerned, but it still exists for those who are not saved by
Yeshua, Jesus, and His great sacrifice on that cross.
That curse, of course, is punishment and death. That curse being destroyed for all who are saved by the Blood of the Lamb, providing they do not turn to wanton sin, no longer exists. This does not mean we have license to sin. Because sin is breaking the law, we are still expected to live by the laws although we will never be perfect until the work begun in us by God is finished for we perfect nothing. God does all the perfecting. Meanwhile, sorry warm and fuzzies, we are to obey the Father. To say the law is dead is the same as saying we may break it with impunity. This is a lie of the enemy.
What child, good child, does not fear his parents to the point of obeying them? Only an evil child, for it is written even a child is known by his conduct. Also, fear of God is a stepping stone to His perfect love because once we have experienced His love, that fear goes away.
The New Testament part of the Book, for it is one book, elaborates on the fulfilling of all righteousnous by Yeshua, Jesus, by many reliable witnesses and the apostles, and it contains the Gospel or Good News delivered by Him for all who are saved.
A good New Testament Church will teach all of the Word, amen.