Old and New Testament: You Can Never Understand One Without the Other
A key understanding and teaching in Christianity is that the Old Testament requires the New Testament to be understood properly, and the New Testament requires the Old Testament to be understood properly. You would think this would be a self-evident truth, but trust me on this, most modern Biblical “scholarship” absolutely denies this and forcefully rejects this belief. Modernist Lutherans have thoroughly swallowed this poison as well. Here is a good insight into what the Church has always taught, everywhere, at all times:
From the beginning “the harmonious agreement of the Law and the Prophets with the Testament delivered by the Lord” was the “rule of the Church” [a quote from St. Clement]. In the conjunction of the two Testaments was woven a single vesture for the Word; together they formed one body, and to rend this body by rejecting the Jewish books was no less a sacrilege than to rend the body of the Church by schism. If indeed the coming of Christ determined the “end of the Law”, [telos], the Law itself bore witness that its end was Christ, [skopos]. … For a Christian to understand the Bible means to understand it in the light of the Gospel. “No one can understand the Old Testament without the teaching of the New, since the spiritual meaning of the Old Testament is nothing else than the New.” … Or, as Origen remarked: “We who belong to the Catholic Church do not despise the Law of Moses, but accept it, so long as it is Jesus who interprets it for us. Only thus shall we understand it aright.”
Lubac: Catholicism, pg. 176-177, 178.