18 Oh that you had listened to my commandments! then your peace would have been like a river, and your righteousness like the waves of the sea:
*Minor differences ignored. Grouped by changes, with first version listed as example.
O if thou hadst hearkened to my commandments! As the people might complain of being carried into captivity, the Prophet, intending to meet those murmurs, points out the cause, which was, that they did not submit to the doctrine of salvation, and did not allow themselves to derive any advantage from it. He undoubtedly alludes to the song of Moses, in which very nearly the same form of expression occurs, "O that they were wise, and that they understood!" (Deuteronomy 32:29.) lv' (lu) denotes a wish, O if! or, Would that! Not only does the Lord expostulate with the Jews for having disregarded the advantage, or "profitableness," (verse 17,) which was offered to them, but like a father, he deplores the wretchedness of his children; for he takes no pleasure in our distresses, and is not severe, unless when we constrain him by our wickedness. This is therefore a figurative appropriation of human affections, by which God compassionates the ruin of those who chose rather to perish of their own accord than to be saved; for he was ready to bestow blessings of every kind, if we did not drive him away by our obstinacy. Yet it would be foolish to attempt to penetrate into his secret counsel, and to inquire why he did not add the efficacy of the Spirit to the external word; for nothing is said here about his power, but there is only a reproof of the hard-heartedness of men, that they may be rendered inexcusable. Certainly, whenever God invites us to himself, there is clearly laid before us, in his word, complete happiness, which we wickedly reject. Then would thy peace have been as a river. The word peace, as we have formerly explained, [1] denotes all prosperous events. It is as if he had said, "The richest plenty of spiritual blessings would have flowed to thee abundantly, and thou wouldst have had no occasion to dread any change; because the blessing of God upon believers is never dried up. And thy righteousness as the waves of the sea. We might explain righteousness, which he connects with peace, to mean what is expressed by the familiar phrase (ton bon droict) "thy right." But I choose rather to understand by the word "Righteousness" a well regulated commonwealth, in which everything is administered in a regular and orderly manner; as if he had said, "Thou wouldest have had everything well conducted at home, and wouldest have had plenty and abundance of all things." And properly does he connect this condition with "peace;" for when government is overtumed, everything goes wrong and is out of order, and it is utterly impossible that we shall enjoy "peace," if there be not "righteousness," that is, a just and equitable administration of affairs. If, therefore, we are desirous of "peace," let us likewise wish to have that blessed condition on which the Lord bestows his blessing. Here some commentators speculate about spiritual "righteousness," and the forgiveness of sins; but they wander far from the Prophet's meaning, which is plain and obvious.
1 - See Commentary on Isaiah, [29]vol. 1, p 312; [30]vol. 2, pp. 214, [31]227.
O that thou hadst heardened to my commandments! - This expresses the earnest wish and desire of God. He would greatly have preferred that they should have kept his law. He had no wish that they should sin, and that these judgments should come upon them. The doctrine taught here is, that God greatly prefers that people should keep his laws. He does not desire that they should be sinners, or that they should be punished. It was so with regard to the Jews; and it is so with regard to all. In all cases, at all times, and with reference to all his creatures, he prefers holiness to sin; he sincerely desires that there should be perfect obedience to his commandments. It is to be remarked also that this is not merely prospective, or a declaration in the abstract. It relates to sin which had been actually committed, and proves that even in regard to that, God would have preferred that it had not been committed. A declaration remarkably similar to this, occurs in Psalm 81:13-16 :
O that my people had hearkened unto me,
And Israel had walked in my ways;
I should soon have subdued their' enemies,
And turned their hand against their adversaries
The haters of the Lord should have submitted themselves unto him:
But their time should have endured forever.
He should have fed them also with the finest of the wheat;
And with honey out of the rock should I have satisfied thee.
Compare Deuteronomy 22:29; Isaiah 5:1-7; Ezekiel 18:23-32; Matthew 23:37; Luke 19:21.
Then had thy peace been as a river - The word 'peace' here (שׁלום shâlôm) means properly wholeness, soundness, and then health, welfare, prosperity, good of every kind. It then denotes peace, as opposed to war, and also concord and friendship. Here it evidently denotes prosperity in general, as opposed to the calamities which actually came upon them.
As a river - That is, abundant - like a full, flowing river that fills the banks, and that conveys fertility and blessedness through a land. 'The pagan, in order to represent the Universal power and beneficence of Jupiter, used the symbol of a river flowing from his throne; and to this the Sycophant in Plautus alludes (Trium. Acts iv. Sc. 2, v. 98), in his saying that he had been at the head of that river:
Ad caput amuis, quod de coelo exoritur, sub solio Jovis.
See also Wemyss' Key to the Symbolical Language of Scripture, Art. River. Rivers are often used by the sacred writers, and particularly by Isaiah, as symbolic of plenty and prosperity Isaiah 32:2; Isaiah 33:21; Isaiah 41:18; Isaiah 43:19.
And thy righteousness - The holiness and purity of the nation. Religion, with all its inestimable benefits, would have abounded to the utmost extent. Instead of the prevailing idolatry and corruption, the hypocrisy and insincerity which had abounded, and which made it necessary for God to remote them, they would have been distinguished for sincerity, purity, love, and holy living. And this proves that God would have preferred the prevalence of holiness.
As the waves of the sea - What can be a more beautiful or sublime image than this? What can more strikingly represent the abundance of the blessings which religion would have conferred on the land? The waves of the sea are an emblem of plenty. They seem to be boundless. They are constantly rolling. And so their righteousness would have been without a limit; and would have rolled unceasingly its rich blessings over the land. Who can doubt that this would have been a better state, a condition to have been preferred to that which actually existed?
As a river "Like the river" - That is, the Euphrates.
O that thou hadst hearkened to my commandments,.... Which the Jews did not, but slighted and despised them, and were not obedient to them. So, in the times of Christ, they disregarded his doctrines, though so profitable; and despised his ordinances and commands, which were not grievous; they neither hearkened to them themselves, nor would suffer others; wherefore our Lord expresses his great concern at it, and his desire, as man, after their welfare; see Matthew 23:13,
then had thy peace been as a river: their prosperity, temporal and spiritual, had been abundant, and would have always continued, have been increasing and ever flowing, yea, overflowing, like the waters of a river. The Targum is, the river Euphrates, a river which ran through Babylon: but they had no regard to the things which related to their temporal, spiritual, and eternal peace, these were hid from their eyes, Luke 19:42,
and thy righteousness as the waves of the sea: large, abundant, numerous as the waves of the sea; which may regard acts of justice and righteousness, which are the support of a people and state, and blessings the fruit thereof; and which God of his goodness bestows on such a people, as all kind of prosperity, protection, safety, and continuance.
peace-- (Psalm 119:165). Compare the desire expressed by the same Messiah (Matthew 23:37; Luke 19:42).
river-- (Isaiah 33:21; Isaiah 41:18), a river flowing from God's throne is the symbol of free, abundant, and ever flowing blessings from Him (Ezekiel 47:1; Zac 14:8; Revelation 22:1).
righteousness--religious prosperity; the parent of "peace" or national prosperity; therefore "peace" corresponds to "righteousness" in the parallelism (Isaiah 32:17).
As the waves - Infinite and continual.
*More commentary available at chapter level.