It doesn't specify the size of government, that is correct. However, if there are people who apply their faith to every aspect of life, they will unapologetically apply it to their vote. Whether it's discouraging citizens from self-destructive behavior (usually a conservative stance), or state-sponsored charity (usually a liberal stance), people who see each other as brothers will hit the polls in an effort to improve societal conditions. Faith-based voters also see The Bible, etc. as not only books about personal salvation, but books that can be applied in order to civilize society.
"The law given from Sinai was a civil and municipal as well as a moral and religious code... laws essential to the existence of men in society and most of which have been enacted by every nation which ever professed any code of laws."
-John Quincy Adams
"If 'Thou shalt not covet,' and 'Thou shalt not steal,' were not commandments of Heaven, they must be made inviolable precepts in every society before it can be civilized or made free."
-John Adams
"All the miseries and evils which men suffer from vice, crime, ambition, injustice, oppression, slavery and war, proceed from their despising or neglecting the precepts contained in the Bible."
-Noah Webster