If someone were to ask my opinion as to what the introduction to the Bible might be, I would say Genesis 1:1 through Genesis 3:15 because these Scriptures lay out the first revelation we encounter that declares the purpose and need for Jesus among the human race. He is the salvation of the world, even if only one individual is to be recovered from disobedience against God. Else, the destruction, or fate of all human kind would be the same as that along side of Satan and his angels; when God ends this present world dispensation!

Now, the introduction to the Bible (Genesis 1:1 through Genesis 3:15) having been established, the remaining Bible texts are records and they prophesy, for any of us to know, of how God chose to bring about the salvation of the human race through the Lord Jesus Christ; who is the seed of the woman according to flesh (Genesis 3:15). But He (Jesus) is God according to Spirit; for God is Spirit (John 4:24).