The contextualizing of the gospel is essentially an attempt to accommodate social change, culture, tradition, and religious views of other so-called faiths when presenting the gospel. The Word of God is then conformed, as needed, to adapt to these areas more effectively to minister to others.
For example, the Muslim holds a monotheistic view of Allah. That is, there is only one true God. Contextualizing theology asks the question whether this is compatible with Christianity since it also holds to a monotheistic view of God. With what appears to be common ground they feel they have an open door to advance the gospel. While this is only one facet of contextualizing, it is a practice that is questionable at best, and in some cases heretical.
The Word of God stands alone as the final authority in all matters of faith and practice. It does not need the assistance of concepts, which only serve to undermine the Scriptures. There is one true and living God whose name is Jesus Christ, “For in Him dwelleth all the fullness of the Godhead bodily” (Col. 2:9). All other gods or views of gods are false! source