By Letters Patent, And Publique Seale If the question be of Obedience to a publique Officer; To have seen his Commission, with the Publique Seale, and heard it read; or to have had the means to be informed of it, if a man would, is a sufficient Verification of his Authority.  For every man is obliged to doe his best endeavour, to informe himself of all written Lawes, that may concerne his own future actions.

The Interpretation Of The Law Dependeth
On The Soveraign Power
The Legislator known; and the Lawes, either by writing, or by the light of Nature, sufficiently published; there wanteth yet another very materiall circumstance to make them obligatory.  For it is not the Letter, but the Intendment, or Meaning; that is to say, the authentique Interpretation of the Law (which is the sense of the Legislator,) in which the nature of the Law consisteth; And therefore the Interpretation of all Lawes dependeth on the Authority Soveraign; and the Interpreters can be none but those, which the Soveraign, (to whom only the Subject oweth obedience) shall appoint.  For else, by the craft of an Interpreter, the Law my be made to beare a sense, contrary to that of the Soveraign; by which means the Interpreter becomes the Legislator.

All Lawes Need Interpretation All Laws, written, and unwritten, have need of Interpretation.  The unwritten Law of Nature, though it be easy to such, as without partiality, and passion, make use of their naturall reason, and therefore leaves the violators thereof without excuse; yet considering there be very few, perhaps none, that in some cases are not blinded by self love, or some other passion, it is now become of all Laws the most obscure; and has consequently the greatest need of able Interpreters.  The written Laws, if they be short, are easily mis-interpreted, from the divers significations of a word, or two; if long, they be more obscure by the diverse significations of many words:  in so much as no written Law, delivered in few, or many words, can be well understood, without a perfect understanding of the finall causes, for which the Law was made; the knowledge of which finall causes is in the Legislator.  To him therefore there can not be any knot in the Law, insoluble; either by finding out the ends, to undoe it by; or else by making what ends he will, (as Alexander did with his sword in the Gordian knot,) by the Legislative power; which no other Interpreter can doe.

The Authenticall Interpretation Of Law Is Not That Of Writers The Interpretation of the Lawes of Nature, in a Common-wealth, dependeth not on the books of Morall Philosophy.  The Authority of writers, without the Authority of the Common-wealth, maketh not their opinions Law, be they never so true.  That which I have written in this Treatise, concerning the Morall Vertues, and of their necessity, for the procuring, and maintaining peace, though it bee evident Truth, is not therefore presently Law; but because in all Common-wealths in the world, it is part of the Civill Law:  For though it be naturally reasonable; yet it is by the Soveraigne Power that it is Law:  Otherwise, it were a great errour, to call the Lawes of Nature unwritten Law; whereof wee see so many volumes published, and in them so many contradictions of one another, and of themselves.