What is the Orthodox teaching concerning the two Testaments (Old and New)? Is there any continuity from one to the other?
Of course, there is continuity. This continuity is proven by Our Lord Jesus Christís words, "Do not think that I came to destroy the Law or the Prophets. I did not come to destroy but to fulfill" (Mt 5:17). The Old Testament contains all the prophecies fulfilled in the New Testament. The New Testament is a continuation that does not contradict but complement the Old Testament. Orthodoxy teaches the whole Holy Bible as one book. The whole Book is inspired (Old and New Testament).