John Trapp on Proverbs 14:5

Verſ. 5. A faithful witneſſe will not lie] Nec prece nec precio, he cannot lend an oath for a need before a Magiſtrate. Nay, hee will not lye upon any condition. See the note on chap. 13.5.

But a falſe witneſſe will utter lyes] Or, he that telleth lyes will be a falſe witneſſe: he that makes light of a lye, will not ſtick at Perjury. That was a foul blur to the Romans of old (if true) that Mirrhanes the Perſian General chargeth upon them, Romanis promittere promptum eſt, Procop. lib. 1. de bel. Perſi[illegible: 1 letter] promiſſis autem quanquam juramento firmatis minimè ſtare. The Romans will preſently promiſe any thing, but perform no promiſe though confirmed with an oath. Of the Romiſts at this day it is written by an Italian (no ſtranger to the Court of Rome,) that their Proverb is, Mercatorum eſt, non Regum, ſtare juramentis? It is for Merchants, not for Princes, to ſtand to what they have ſworn. Fides cum haeretic is non eſt ſervanda is their poſition: and their practice is according. They play with Oathes as the Monkey doth with his Collar, which he doth ſlip on for his Maſters pleaſure, and ſlip off again for his own. Paſcenius ſcoffs King James for the invention of the Oath of Allegiance.