I recently listened to Kurt Wise's talk at the Grace Reformed Baptist Church creation conference (in 2000) where he said something with the import of:
If you deny the biblical data on God's creation, then you end up worshipping a different God to the one revealed in the Bible.
Ironically, I've had conversations with, usually younger people (and those usually university students, who may be suffering from the 'undergraduate delusion', i.e. they know everthing), where, on the topic of creation, they accuse such as I, who hold to the direct veracity of the biblical account, of 'worshipping a different god'.
This accusation is hurled because I counter the idealist biblical theology they espouse; without them understanding that they are espousing anything in particular, of course, just uncritically recycling the pap they've often been fed.
It amused me that Wise turns the tables, and points out that as they attribute to God things in creation that are not of his word (that is, they add to the doctrine of creation from outside the Bible, such as in the incoherent cliam that 'God used evolution'), they must be worshipping a different God to the one in the Bible.