Charles H. Kraft quotes:

...we see God working in terms of Jewish culture to reach Jews, yet, refusing to impose Jewish customs on Gentiles. Instead non-Jews are to come to God and relate to Him in terms of their own cultural vehicles. We see the Bible endorsing, then, a doctrine we call biblical sociocultural adequacy in which each culture is taken seriously but none advocated exclusively as the only one acceptable to God.

Our assumption is that God has not revealed all there is to know in the spiritual area any more than he has in these other areas. We, therefore, need to experiment in this area and, like scientists who work in other areas, develop and test theories in order to gain greater understanding

We contend that ideas and/or practices may be scriptural as long as they are not condemned by scripture.