Probably the same way Sproul does Grasshopper:
R.C. Sproul and Six-Day*Creation
A noted evangelical, R C Sproul, has announced a conversion from having previously accepted the theory of evolution as valid science. He now accepts both the Biblical and scientific evidence that the world was created in 6 literal 24-hour days and possibly as recently as around 6,000 years ago.
R C Sproul is the author of some 60 Christian books. He has now stated on the record:
“For most of my teaching career, I considered the ‘framework hypothesis’ to be a possibility. But I have now changed my mind. I now hold to a literal six-day creation. Genesis says that God created the universe and everything in it in six twenty-four-hour periods.”
The ‘framework hypothesis’ was an attempt to maintain that the Bible was authoritative whilst at the same time denying the six ordinary days of creation. It was first outlined by Arie Noordtzij in 1924. The framework hypothesis holds that Genesis 1 is merely a ‘framework’ into which evolution over hundreds of millions of years can be fitted. Its leading proponents, Meredith Kline and Henri Blocher, have admitted that their adoption of this hypothesis was born of a desperation to fit the Bible into the alleged ‘facts’ of science.
RC Sproul has recently published a three-volume layman’s guide to the Westminster Confession of Faith entitled Truths We Confess (P & R, 2006, 2007). In this commentary, Sproul wrote:
“According to the Reformation hermeneutic, the first option is to follow the plain sense of the text. One must do a great deal of hermeneutical gymnastics to escape the plain meaning of Genesis 1 to 2. The confession makes it a point of faith that God created the world in the space of six days.”
Sproul now goes still further and has added scientific evidence for a young earth in his commentary.
Creationist Tas Walker, from Creation Ministries International, has commented:
“Within the church it is rare to find an evangelical academic commentary that will take a stand on a six-day, recent creation. Many Bible timelines produced by Biblical academics will avoid earth history prior to Abraham. We have seen the disastrous effect of such timidity and compromise as the church has lost much support in the West. Why should people listen when they think the church has no answers in this scientific age? So it is particularly encouraging to see a scholar of the stature of R C Sproul prepared to take a stand on the Word of God as written - and defend it. I was especially impressed that he could admit he no longer believed what he had taught for most of his teaching career. He has set a courageous example of integrity, scholarship and commitment to Biblical authority.”
The above is from Banner of Truth…
http://reformationfaithtoday.com/2008/07/10/rc-sproul-and-six-day-creation/