Jamieson, Fausset & Brown

uprightness--rather, "is direct," that is, is directed by God to a prosperous issue, however many be their afflictions in the meantime (as in the case of the Jewish exiles); the context requires this sense (Psa 34:19; Pro 3:6; Pro 11:5), [MAURER]: thus "way" means God's dealings with the righteous (Psa 37:23). most upright-- (Deu 32:4). dost weigh-- (Sa1 2:3; Pro 5:21). Rather, "thou dost make plain and level" [MAURER], removing all obstacles (Isa 40:3-4).