Jamieson, Fausset and Brown on Ezekiel 18:5

5. Here begins the illustration of God's impartiality in a series of supposed cases. The first case is given in Eze 18:5-9, the just man. The excellencies are selected in reference to the prevailing sins of the age, from which such a one stood aloof; hence arises the omission of some features of righteousness, which, under different circumstances, would have been desirable to be enumerated. Each age has its own besetting temptations, and the just man will be distinguished by his guarding against the peculiar defilements, inward and outward, of his age.

just ... lawful ... right--the duties of the second table of the law, which flow from the fear of God. Piety is the root of all charity; to render to each his own, as well to our neighbor, as to God.