“The fact that the Bible sweeps across the thousands of years between the creation of man and Abraham in only eleven chapters, with the call of Abraham coming in Genesis 12, suggests that the information given in the first eleven chapters of the Bible was intended as preparatory “background” to the revelation of the Abrahamic covenant. Revelation subsequent to it discloses that all that God has done savingly in grace since the revelation of the Abrahamic covenant is the result and product of it.”
p. 513, A New Systematic Theology of the Christian Faith by Robert L. Reymond.
