"In the Old Testament the New is concealed, in the New the Old is revealed"
The famous words uttered by the church father Augustine.
One of my endeavours when ever I am writing an article is when responding to Rabbinic objections is reconciliation of the TANAKH and the NT documents and resolve any supposed contradictions that are found in the scriptures.
Some of the many arguments would include the subject of blood atonement, the understanding of typologies in the NT (which is not circular reasoning), the repudiation of idolatrous practises which both Testaments condemn, especially since the traditions that claim to be biblical Christianity endorse such evil.
See the following on these issues:
See my article response to Walid Shoebat on the issue of icons for worship (Not icons as decoration): http://answering-judaism.blogspot.co.uk/2014/04/why-having-icons-to-worship-is.html
Keith Thompson of Reformed Apologetics Ministries, along with interviews with Richard Bennett and Robert Zins, have exposed Roman Catholicism as the fraudulent church it is, namely it's mariolatry, idolatry, works salvation, transubstantiation, necromancy, and it's denial of justification by faith alone in Christ alone, in a documentary which can be found here: https://www.youtube.com/watch?v=eS9zSP2udOA
I seek to resolve in my papers the problems that Rabbinic Jews raise to the best of my ability.
Both the TANAKH and the NT are a sandwich and fit together. No other set of books are needed, neither the traditions of the RCs and EOs, the Quran, the Talmud, the Book of Mormon or any other book is required. We have what we need in the TANAKH and the NT.