The Meaning of "Faith" in Paul

John Dominic Cross and Jonathan T. Reed say this about "Faith":

"Faith does not mean intellectual consent to a proposition, but vital commitment to a program. Obviously, one could summarize a program in a proposition, but faith can never be reduced to factual assent rather than total dedication. Faith (pistis) is not just a partial mindset, but a toal lifestyle commitment. The crucial aspect of faith as commitment is that it is always an interactive process, a bilateral contract, a two-way street. Faith is covenantal and presumes faithfulness from both parties with, of course, all appropriate differences and distinctions."