In the early 1900's. a twelve volume work on theology titled The Fundamentals was published. This massive work, in my most humble of opinions, is just as relevant today if not more so with the ever increasing attacks on the faith of Christians--and that's just from folks inside the church. I wanted to publish some excerpts from this work that I think will be greatly encouraging to you.
One of the most important branches of theology is called the science of Biblical criticism, which has for its object the study of the history and contents, and origins and purposes, of the various books of the Bible. In the early stages of the science Biblical criticism was devoted to two great branches, the Lower, and the Higher.
The Lower Criticism was employed to designate the study of the text of the Scripture, and included the investigation of the manuscripts, and the different readings in the various versions and codices and manuscripts in order that we may be sure we have the original words as they were written by the Divinely inspired writers. (See Briggs, Hex., page 1). The term generally used now-a-days is Textual Criticism. If the phrase were used in the twentieth century sense, Beza, Erasmus, Bengel, Griesbach, Lachmann, Tregelles, Tischendorff, Scrivener, Westcott, and Hort would be called Lower Critics. But the term is not now-a-days used as a rule.
The Higher Criticism, on the contrary, was employed to designate the study of the historic origins, the dates, and authorship of the various books of the Bible, and that great branch of study which in the technical language of modern theology is known as Introduction. It is a very valuable branch of Biblical science, and is of the highest importance as an auxiliary in the interpretation of the Word of God. By its researches floods of light may be thrown on the Scriptures.