"Now, look up "bible"! You know what I mean. The concept is there in both Testaments."
Actually, the first word in the NT is "Biblos." :-) Not that it is used in the same way that we think of the word "Bible..."
And then there is Acts 17 with the "politarchii", or rulers of the city. Put that together with the fact that in verse 5 of that chapter we have "certain lewd fellows of the baser sort" being used to stir up the city and its rulers, and I'd say that's a slam dunk for politics being in the Bible -- both in letter and spirit! :-)
And we see WHO precisely is active in politics. ;O)