Thanks Pilgrim bravo

Shortly after I wrote that last night I found that passage; but I appreciate your input.
I am presently looking at this passage in light of how my friend's friend used it; i.e. to show that all Christians know the truth without Scripture, in fact this knowledge even supersedes Scripture itself. As I indicated before he believes that the Bible isn't God's actual Word without error, but just one testimony about the true God and His covenant with His people. It doesn't matter to him that the Bible actually claims to be God's Word since much of it (according to him) has been corrupted by the Roman Catholic Church.
Am I correct that this sounds a little like Gnosticism?

One tool I am using to do this is my new Bible Commentary series by Hendriksen and Kistemaker.
However, I am open to any wisdom you or other participants on the Highway might suggest.
Tom