Intelligent Design arguments are carefully formulated in secular terms and intentionally avoid positing the identity of the designer. Phillip E. Johnson has stated that cultivating ambiguity by employing secular language in arguments which are carefully crafted to avoid overtones of theistic creationism is a necessary first step for ultimately reintroducing the Christian concept of God as the designer. Johnson emphasizes "the first thing that has to be done is to get the Bible out of the discussion" and that "after we have separated materialist prejudice from scientific fact ... only then can 'biblical issues' be discussed."[48] Johnson explicitly calls for Intelligent Design proponents to obfuscate their religious motivations so as to avoid having Intelligent Design identified "as just another way of packaging the Christian evangelical message."[49] Though not all Intelligent Design proponents are motivated by religious fervor, the majority of the principal Intelligent Design advocates, including Michael Behe, William Dembski, Jonathan Wells (actually a member of the Unification Church, headed by Reverend Moon), and Stephen C. Meyer, are Christians and have stated that in their view the designer of life is God. The preponderance of leading Intelligent Design proponents are evangelical Protestants.