Therefore before the names of Just, and Unjust can have place, there must be some coercive Power, to compell men equally to the performance of their Covenants, by the terrour of some punishment, greater than the benefit they expect by the breach of their Covenant; and to make good that Propriety, which by mutuall Contract men acquire, in recompence of the universall Right they abandon: and such power there is none before the erection of a Common-wealth.

And this is also to be gathered out of the ordinary definition of Justice in the Schooles: For they say, that "Justice is the constant Will of giving to every man his own." And therefore where there is no Own, that is, no Propriety, there is no Injustice; and where there is no coerceive Power erected, that is, where there is no Common-wealth, there is no Propriety; all men having Right to all things: Therefore where there is no Common-wealth, there nothing is Unjust.

So that the nature of Justice, consisteth in keeping of valid Covenants: but the Validity of Covenants begins not but with the Constitution of a Civill Power, sufficient to compell men to keep them: And then it is also that Propriety begins.
Justice Not Contrary To Reason The Foole hath sayd in his heart, there is no such thing as Justice; and sometimes also with his tongue; seriously alleaging, that every mans conservation, and contentment, being committed to his own care, there could be no reason, why every man might not do what he thought conduced thereunto; and therefore also to make, or not make; keep, or not keep Covenants, was not against Reason, when it conduced to ones benefit.
He does not therein deny, that there be Covenants; and that they are sometimes broken, sometimes kept; and that such breach of them may be called Injustice, and the observance of them Justice: but he questioneth, whether Injustice, taking away the feare of God, (for the same Foole hath said in his heart there is no God,) may not sometimes stand with that Reason, which dictateth to every man his own good; and particularly then, when it conduceth to such a benefit, as shall put a man in a condition, to neglect not onely the dispraise, and revilings, but also the power of other men.

The Kingdome of God is gotten by violence; but what if it could be gotten by unjust violence?
were it against Reason so to get it, when it is impossible to receive hurt by it?
and if it be not against Reason, it is not against Justice; or else Justice is not to be approved for good.

From such reasoning as this, Succesfull wickednesse hath obtained the Name of Vertue; and some that in all other things have disallowed the violation of Faith; yet have allowed it, when it is for the getting of a Kingdome.