John Trapp on Romans 3:4

Verſe 4. Every man a lier] viz. By nature. But Iſa. 63.8. Gods people are children that will not lie, they will die rather. Non ideò negare volo, ne peream: ſed ideò mentiri nolo ne peccem, ſaith ſhe upon the rack, of whom St Hieron[illegible: 1 letter] writeth. The officers of Merindol anſwered the Biſhop that moved them to abjure, That they marvelled much that he would perſwade them to lie to God and the world.Act and Mon. [illegible: 1 letter]ol. 860. And albeit that all men by nature are liers, yet they had learned by the Word of God, that they ought diligently to take heed of lying in any matter, be it never ſo ſmall, &c.

That thou maiſt be juſtified in thy ſayings] David ſpeaketh of the truth of Nathans reprehenſion; Paul applies it to the truth of God in his promiſes alſo. Let us give him a teſtimoniall, Ioh. 3.33. Such as is that Deut. 32.4. A God of truth, and without iniquity, juſt and right is he.

And mightest overcome] Maiſt be pure,Pſal. 51. ſaith David. Zacah in the Syriack is uſed for overcoming. Vincit veritas, & dare non dignis res magè digna Deo eſt.