Biblical Typology is one of the most fascinating areas of Bible study and is the study of Scripture "types." Biblical Typology in Christian theology and Biblical exegesis is a theory concerning the relationship between the Old and New Testaments. Exactly what is a type? Theologically speaking, a type may be defined as a figure or ensample of something future and more or less prophetic, called the "Antitype". A type is the preordained representative relation which certain persons, events, and institutions of the Old Testament bear to corresponding persons, events, and institutions in the New. In is as if type is a shadow cast on the pages of Old Testament history by a truth whose full embodiment or antitype is found in the New Testament revelation.
Typology, derived from the Greek word for "mark", posits that Old Testament events or statements are the "types" pre-figuring an aspect of Christ and his revelation, who is the "antitype" to each type. This is much like the concept of the typewriter where the key (type) placed a character on the page.
There are several words used in the Greek New Testament to denote what we have just defined as a type. First, there is the term tupos (the basis of our English word "type"). Though this word is variously employed in the New Testament, it is certainly used in our present sense in Romans 5:14 where Paul declares that Adam is a figure (tupos) of him that was to come, i.e., Christ. Also there is the word skia, rendered "shadow." In Colossians 2:17, certain elements of the Mosaic system are said to be a shadow of the things to come (cf. Hebrews 8:5; 10:1).Another term hupodeigma, translated "copy," and used in conjunction with "shadow" in Hebrews 8:5 (cf. Hebrews 9:23). Finally, one should note the use of antitupon, rendered "figures" (KJV) or "pattern" (ASV) in Hebrews 9:24, and "like figure" (KJV) or "true likeness" (ASV) in 1 Peter 3:21. This word, as used in the New Testament, denotes that which corresponds to the type; it is the reality which fulfills the prophetic picture.
Biblical Typology is also a theory of history, seeing the whole story of the Jewish and Christian peoples as shaped by God, with events within the story acting as symbols for later events - in this role God is often compared to a writer, using actual events instead of fiction to shape his narrative.
The Early Christians, in considering the Old Testament, needed to decide what its role and purpose for them was, given that Christian revelation and the New Covenant might be considered to have replaced it, and many specific Biblical rules and requirements in books like Leviticus were no longer being followed. See also Leviticus 18.
Biblical Typology allows us to see that the purpose of the Old Testament for Christians was to demonstrate that Christ's first coming had been prophesied and foreseen, and the Gospels already contain many passages that explicitly and implicitly link Jesus to old Testament prophecies. The study of Typology will reveal many links between events, people, places, and concepts of the Old Testament and the New Testament.
Yes the Bible is one story from Genesis to Revelation and it is the "Revelation of Jesus Christ"