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4. Say to them that are faint hearted. That strength of which he spoke is breathed into our hearts by God through his word, as “by faith alone we stand” (2 Corinthians 1:24) and live; and therefore he adds the promise of grace yet to come.

Behold, your God will come. First, it ought to be observed that God does not wish that his grace should remain concealed and unknown, but rather that it should be proclaimed and imparted, that they who totter and tremble may compose and invigorate their hearts. And this is one method by which our hearts may be cheered amidst heavy distresses; for if we are not supported by the word of the Lord, we must faint and despair. This, then, is the office assigned to the teachers of the word, to raise up them that are fallen down, ²³²³     “Fortifler ceux qui sont prests a tomber.” “To support those who are ready to fall.” to strengthen the feeble, to upheld the tottering.

We ought also to observe how great is the efficacy of the word in “invigorating the feeble hands and strengthening the tottering knees;” for if it had not been a powerful instrument in communicating this strength, the Prophet would never have spoken in this manner; and, indeed, if God struck only our ears by his word, and did not pierce our hearts, these words would have been spoken in vain. Since, therefore, the Lord assigns this office to the word, let us know that he also imparts this power to it, that it may not be spoken in vain, but may inwardly move our hearts, not always indeed or indiscriminately, but where it pleases God by the secret power of his Spirit to work in this manner. And hence we infer that the same word makes us disposed to obey him; for otherwise we shall be indolent and stupid; all our senses shall fail, and we shall not only waver, but shall be altogether stupified by unbelief. We, therefore, need to receive aid from the Lord, that the removal of our fear and the cure of our weakness may enable us to walk with agility.

Fear not; behold, your God will come. This warning deeply fixed in our minds will banish slothfulness. As soon as men perceive that God is near them, they either cease to fear, or at least rise superior to excessive terror.

“Be not anxious,” says Paul, “for the Lord is at hand.” (Philippians 4:5, 6.)

On this subject we have spoken largely on other occasions; and the Apostle to the Hebrews appears to allude to this passage, when, after having charged them not to be wearied and faint-hearted, he quotes the words of the Prophet. (Hebrews 12:3, 12.) Yet he directs this discourse to every believer, that they may be excited to perseverance, and because they have many struggles to maintain, may advance steadfastly in their journey. Nor is it superfluous that he adds your God; for if we do not know that he is our God, his approach will produce terror, instead of giving cause of joy. Not the majesty of God, which is fitted to humble the pride of the flesh, but his grace, which is fitted to comfort the fearful and distressed, is here exhibited; and, therefore, it is not without reason float he is represented as a guardian, to shield them by his protection.

If it be objected that he brings terror when he comes to take vengeance, I reply that this vengeance, is threatened against wicked men and enemies of the Church. To the latter, therefore, he will be a terror, but to believers he will be a consolation; and accordingly he adds that he will come to save them, because otherwise it might be objected, “What is it to us if our enemies be punished? What good does it do to us? Must we take delight in the distresses of enemies?” Thus he expressly declares that it will promote our “salvation;” for the vengeance which God takes on wicked men is connected with the salvation of the godly. In what manner the godly are delivered from anxiety and dread by the favor of God and by the expectation of his aid, has been explained at a former passage). ²⁴²⁴     Commentary on Isaiah, vol 1, p. 232. (Isaiah 7:4.) At present it ought to be observed, that God is prepared and armed with vengeance, that believers may learn to lean on his aid, and not to fancy some deity unemployed in heaven. Such is also the object of the repetition of the words, “he will come;” because distrust is not all at once banished from the hearts of men.

The end of the verse may either be rendered, God himself will come with a recompense, or He will come with the recompense of God; but as the meaning is the same, the reader may make his choice Yet if it be thought preferable to view אלהים (elohim) as in the genitive case, “of God,” then by “the recompense of God” is emphatically meant that which belongs peculiarly to God, that believers may be fully convinced that he is a “rewarder” as truly as he is God. ²⁵²⁵     “Vengeance shall come. The meaning is the same as if he had said, ‘God will come in vengeance, or as an avenger.’ Again, the retribution of God shall come against your enemies and deliver you.” — Jarchi. “The construction of the second clause is greatly perplexed by making אלהים (elohim) the subject of יבוא (yabo.) The true construction as given by Junius, Cocceius, Vitringa, and most later writers, makes behold your God an exclamation, and vengeance the subject of the verb.” — Alexander.

5. Then shall the eyes of the blind be opened. ²⁶²⁶     “That is,” says Jarchi, “who have hitherto been blind so as not to know the reverence (or fear) of me upon them.” Or, as explained by his annotator Breithaupt, “Who have hitherto shaken off the yoke of the fear of God, and have not manifested the reverence that is due to God.” He continues the promise about the restoration of the Church, in order to encourage the hearts of the godly, who must have been grievously dismayed by the frightful calamities which he foretold. Since a true restoration is accomplished by Christ, we must therefore come to him, if we wish to know the meaning of the words which Isaiah employs in this passage; and indeed it is only by his kindness that we rise again to the hope of a heavenly life. Isaiah probably alludes to a former prediction, (Isaiah 29:10,) in which he threatened against the Jews dreadful blindness, madness, and total stupefaction of the soul. He now promises that, when Christ shalt shine forth, those senses of which they were deprived for a time shall be renovated and brightened to a new life. There is weight in the adverb Then; for we ought to infer from it that, so long as we are alienated from Christ, we are dumb, blind, and lame, and, in short, that we are destitute of all ability to do what is good, but that we are renewed by the Spirit of Christ, so as to enjoy real health.

By the tongue and ears and feet he means all the faculties of our soul, which in themselves are so corrupt that nothing that is good can be obtained from them till they are restored by the kindness of Christ. The eyes cannot see what is right, and the ears cannot hear, and the feet cannot guide us in the right way, till we are united to Christ. Though the senses of men are abundantly acute wherever they are impelled by sinful passions; though the tongue is eloquent for slander, perjury, lying, and every kind of foolish speaking; though the hands are too ready for thefts, extortions, and cruelty; though the feet are swift to do injury; and, in short, though the whole of our nature is not only willing but strongly bent on doing what is evil; yet we are altogether slothful and dull to do what is good, and therefore every part of us must be created anew by the power of Christ, that it may begin to understand aright, to feel, to speak, and to perform its offices; for

“no man can say that Jesus is the Lord but by the Holy Spirit.” (1 Corinthians 12:3.)

This renewal proceeds from the grace of Christ alone, and, therefore, sound strength is regained by those who are converted to Christ, and who formerly were in all respects useless, and resembled dead men; for, while we are separated from Christ, we either are destitute of everything that is good, or it is so greatly corrupted in us, that it cannot be applied to its proper use, but on the contrary is polluted by being abused. Christ gave abundant proofs and examples of this, when he restored speech to the dumb, eyes to the blind, and perfect strength to the feeble and lame; but what he bestowed on their bodies was only a token of the far more abundant and excellent blessings which he imparts to our souls.

6. For waters shall be dug. He next adds other blessings with which believers shall be copiously supplied, as soon as the kingdom of Christ is set up; as if he had said, that there will be no reason to dread scarcity or want, when we have been reconciled to God through Christ, because perfect happiness flows to us from him. But he represents this happiness to us under metaphorical expressions; and, first, he says that “waters shall be dug;” because, where formerly all was barren, there the highest fertility shall be found. Now, we are poor and barren, unless God bless us through Christ; for he alone, brings with him the blessing of the Father, which he bestows upon us. Wicked men, indeed, have often a great abundance of good things, but their wealth is wretched; for they have not Christ, from whom alone proceeds a true and salutary abundance of all blessings. Death unquestionably would be more desirable than that abundance of wine and of food with which we, at the same time, swallow the curse of God. When, therefore, Christ shall gloriously arise, rivers and waters shall flow out and yield true and valuable advantage.