Only if you cite the gospels as often as you cite Deuteronomy.

It's the same math as my randomly saying hello to someone on the street and they are American. We're a tiny fraction of people worldwide, but doing it in America produces a biased sample.

it would depend on what message you wanted to give

so if you knew the text a bit - you would pick one that suited your message - AND - there are certain verses that are famously quoted and others that are not....

so your example is like asking the chances to find a VW car on the road, when you are standing in a VW rally, where it's all VWs.