John Trapp on Galatians 3:19

Verſe 19. Becauſe of tranſgreſſions] Which are diſcovered by the Law. Sight of miſery, muſt go before ſenſe of mercy. Lex. lux, the law is a light (ſaith Salomon) which laies all open: as I Cor. 14.25. and threatneth deſtruction to tranſgreſſours.

And it was ordained, &c.] Therefore it is not to be diſreſpected, though we cannot attain eternall life by it.

In the hand of a Mediatour] That is, of Moſes, who was a Mediatour of that communication of the Law to the people, Exod, 20.19. Chriſt is the only Mediatour of expiation, and of Chriſt alone ſome take this text.