This was not an easy book to read (it took me over a year to read it), but I'm glad I did. Rutherford's scholastic form of writing does take some getting used to. Rutherford wrote this book in response to the popish excommunicated Arminian Anglican prelate, John Maxwell, and his book, "Sanro-Sancta Regum Majestas" or the sacred and royal prerogative of Christian kings. Rutherford wrote his book in the midst of the English Civil War and the Westminster Assembly (every member of the assembly was said to have Lex, Rex in hand; Rutherford was a Scottish commissioner to the assembly). Having historical context is very helpful in reading this book.
Rutherford does a fine job arguing for biblical, limited, and covenantal government in opposition to absolute monarchy (without resorting to the Enlightenment social contract theory that was to come with Locke and others). Some quotes:
"That which is the garland and proper flower of the King of kings, as he is absolute above his creatures, and not tied to any law, without himself, that regulateth his will, that must be given to no mortal man or king, except we would communicate that which is God's proper due to a sinful man, which must be idolatry." (p. 106, In other words, holding that a man (i.e. a king, ruler, or rulers) is above the law is idolatry because it attributes divinity to man.)
On balance of powers due to man's depravity:
"Power and absolute monarchy is tyranny; unmixed democracy is confusion; untempered aristocracy is factious dominion...all three thus contempered have their own sweet fruits through God's blessing, and their own diseases by accident, and through man's corruption; and neither reason nor Scripture shall warrant any one in its rigid purity without mixture." (p. 116)
On tyranny and resistance:
"Therefore an unjust king, as unjust, is not that genuine ordinance of God, appointed to remove injustice, but accidental to a king. So we may resist the injustice of the king, and not resist the king. 8. If, then, any cast off the nature of a king, and become habitually a tyrant, in so far he is not from God, nor any ordinance which God doth own." (p. 117) "A tyrant is he who habitually sinneth against the catholic good of the subjects and the state, and subverteth law." (p. 119)
On the people's calling of the king to public office:
"If the Lord's immediate designation of David, and his anointing by the divine authority of Samuel, had been that which alone, without the election of the people, made David formally king of Israel, then there were two kings in Israel at one time; for Samuel anointed David, and so he was formally king upon the ground laid by royalists, that the king hath no royal power from the people; and David, after he himself was anointed by Samuel, divers times calleth Saul the Lord's anointed, and that by the inspiration of God's Spirit, as we and royalists do both agree. Now two lawful supreme monarchs in one kingdom I conceive to be most repugnant to God's truth and sound reason; for they are as repugnant as two most highs or as two infinities...but certainly God's dispensation in this warranteth us to say, no man can be formally a lawful king without the suffrages of the people: for Saul, after Samuel from the Lord anointed him, remained a private man, and no king, till the people made him king, and elected him; and David, anointed by that same divine authority, remained formally a subject, and not a king, till all Israel made him king at Hebron; and Solomon, though by God designed and ordained to be king, yet was never king until the people made him so, ( 1 Kings i.); therefore there floweth something from the power of the people, by which he who is no king now becometh a king formally, and by God's lawful call; whereas before the man was no king, but, as touching all royal power, a mere private man." (p. 9)
On hereditary versus elective monarchy:
"Obj. – Most of the best divines approve an hereditary monarch, rather than a monarch by election. Ans. – So do I in some cases. In respect of empire simply, it is not better; in respect of empire now, under man's fall in sin, I grant it to be better in some respects...there is less danger to accept of a prince at hand, than to seek one afar off. In a kingdom to be constituted, election is better; in a constituted kingdom, birth seemeth less evil. In respect of liberty, election is more convenient; in respect of safety and peace, birth is safer and the nearest way to the well." (p. 46)