Ezekiel 18:5

Here the Prophet confirms his former teaching by examples. For he first says, if any one faithfully keep the law, he shall prosper, since God will repay the reward of justice: afterwards he adds, if the just man beget a son unlike himself, the justice of the father shall not profit the degenerate son, but he shall receive the reward of his iniquity. But if this second person should beget a son who does not imitate his father, God promises that this third person shall be acceptable by him, because he is just, and therefore enjoys prosperity and happiness. We see, then, that the grandfather and grandson are here spoken of, and that the son of the first, and father of the third, is placed between them. But this is the Spirit’s intention, that God has prepared a reward for each according to their lives, so that he does not permit them to be deprived of their promised blessing, nor let the impious and despisers of his law escape. Now let us come to the words, if any one has been just, says he, he shall be just, therefore he shall live. He speaks generally first: he afterwards enumerates certain species under which he embraces the sum of the whole law. The full sentence is, if any one has been just, he shall live in consequence of his justice. But the Prophet defines what it is to be just, and he there chooses certain parts of the law: by putting a part for the whole, as I have said, he signifies, that whoever faithfully observes the law is esteemed just before God. Now we must examine each of these kinds of justice, and afterwards come to the general doctrine. He says first, that he is just who does justice and judgement. By the word judgment holy Scripture signifies rectitude; but when the two words are joined together, judgment seems to express more than justice: for justice is nothing but equity, fidelity, integrity, when we abstain altogether from fraud and violence, and deal with our brethren as we wish them to deal with us. Whoever so conducts himself is said to do justice; but judgment is extended further, namely, when we not only desire to benefit but defend our brethren, when unjustly oppressed, as far as we can, and when we oppose the lust and violence of those who would overthrow all that is right and holy. Hence to do judgment and justice is nothing else than to abstain from all injury by cultivating good faith and equity with our neighbors: then to defend all good causes, and to take the innocent under our patronage when we see them unjustly injured and oppressed. But these duties belong properly to the second table of the law. But it is clear from this that we fear God when we live justly with our brethren, for piety is the root of charity. Although many profane persons seem blameless in their life, and manifest a rare integrity, yet no one ever loves his neighbor from his heart, unless he fears and reverences God. Since, therefore, charity flows from piety and the fear of God, as often as we see the duties of the second table placed before us, we should learn them to be the testimonies to the worship of God, as is this place: but then the Prophet also adds certain parts of the first table.