Psalm 18:28-32 28. For thou shalt light my lamp, O Jehovah; my God shall enlighten my darkness. 29. For by thee I shall break through the wedge of a troop, and by my God I shall leap over a wall. 30. The way of God is perfect; the word of Jehovah is refined, [or purified;] he is a shield to all those who trust in him. 31. For who is God besides Jehovah? and who is strong except our God? 32. It is God who hath girded me with strength, and hath made my way perfect.
28. For thou shalt light my lamp. In the song in Samuel, the form of the expression is somewhat more precise; for there it is said not that God lights our lamp, but that he himself is our lamp. The meaning, however, comes to the same thing, namely, that it was by the grace of God that David, who had been plunged in darkness, returned to the light. David does not simply give thanks to God for having lighted up a lamp before him, but also for having converted his darkness into light. He, therefore, acknowledges that he had been reduced to such extremity of distress, that he was like a man whose condition was forlorn and hopeless; for he compares the confused and perplexed state of his affairs to darkness. This, indeed, by the transference of material things to things spiritual, may be applied to the spiritual illumination of the understanding; but, at the same time, we must attend to the subject of which David treats, that we may not depart from the true and proper meaning. Now, as he acknowledges that he had been restored to prosperity by the favor of God, which was to him, as it were, a life-giving light, let us, after his example, regard it as certain that we will never have the comfort of seeing our adversities brought to an end, unless God disperse the darkness which envelops us, and restore to us the light of joy. Let it not, however, be distressing to us to walk through darkness, provided God is pleased to perform to us the office of a lamp. In the following verse, David ascribes his victories to God, declaring that, under his conduct, he had broken through the wedges or phalanxes of his enemies, and had taken by storm their fortified cities. Thus we see that, although he was a valiant warrior, and skilled in arms, he arrogates nothing to himself. As to the tenses of the verbs, we would inform our readers once for all, that in this psalm David uses the past and the future tenses indifferently, not only because he comprehends different histories, but also because he presents to himself the things of which he speaks as if they were still taking place before his eyes, and, at the same time, describes a continued course of the grace of God towards him.
30. The way of God is perfect. The phrase, The way of God, is not here taken for his revealed will, but for his method of dealing towards his people. The meaning, therefore, is, that God never disappoints or deceives his servants, nor forsakes them in the time of need, (as may be the case with men who do not aid their dependants, except in so far as it contributes to their own particular advantage,) but faithfully defends and maintains those whom he has once taken under his protection. But we will never have any nearness to God, unless he first come near to us by his word; and, for this reason, David, after having asserted that God aids his people in good earnest, adds, at the same time, that his word is purified. Let us, therefore, rest assured that God will actually show himself upright towards us, seeing he has promised to be the guardian and protector of our welfare, and his promise is certain and infallible truth. That by the word we are not here to understand the commandments, but the promises of God, is easily gathered from the following clause, where it is said, He is a shield to all those who trust in him It seems, indeed, a common commendation to say, that the word of God is pure, and without any mixture of fraud and deceit, like silver which is well refined and purified from all its dross. But our unbelief is the cause why God, so to speak, is constrained to use such a similitude, for the purpose of commending and leading us to form exalted conceptions of the steadfastness and certainty of his promises; for whenever the issue does not answer our expectation, there is nothing to which we are naturally more prone than forthwith to begin to entertain unhallowed and distrustful thoughts of the word of God. For a farther explanation of these words, we would refer our readers to our remarks on Psalm 12:6.
31. For who is God besides Jehovah? David here, deriding the foolish inventions of men, who, according to their own fancy, make for themselves tutelary gods, confirms what I have said before, that he never undertook any thing but by the authority and command of God. If he had passed beyond the limits of his calling, he could not with such confidence have said that God was on his side. Besides, although in these words he opposes to the true God all the false gods invented by men, his purpose, at the same time, is to overthrow all the vain hopes in which the world is wrapped up, and by which it is carried about, and prevented from resting in God. The question which David here treats of is not the bare title and name of God, but he declares that whatever assistance we need we should seek it from God, and from no other quarter, because he alone is endued with power: Who is strong except our God? We should, however, attend to the design of David, which I have first adverted to, namely, that, by confidently representing God as opposed to all his enemies, and as the leader, under whose standard he had valiantly fought against them, he means to affirm that he had attempted nothing according to his own fancy, or with an evil and condemning conscience.
32. It is God who hath girded. This is a metaphor taken either from the belt or girdle of a warrior, or from the reins, in which the Scripture sometimes places a man’s vigor or strength. It is, therefore, as if he had said, I, who would otherwise have been feeble and effeminate, have been made strong and courageous by the power of God. He afterwards speaks of the success itself with which God had favored him; for it would not be enough for persons to have prompt and active courage, nor even to excel in strength, if their undertakings were not at the same time crowned with a prosperous issue. Irreligious men imagine that this proceeds from their own prudence, or from fortune; but David ascribes it to God alone: It is God who hath made my way perfect. The word way is here to be understood of the course of our actions, and the language implies, that whatever David undertook, God, by his blessing, directed it to a successful issue.
Psalm 18:33-36
Psalm 18:33-36 33. Making my feet like hinds’ feet, and he hath set me upon my high places. 34. Teaching my hands to war: and a bow of steel will be broken by my arms. 35. Thou hast also given me the shield of thy salvation; and thy right hand hath holden me up, and thy clemency hath increased me. 36. Thou hast enlarged my steps under me, and my feet have not staggered.
David, having taken many strongholds which, on account of their steep and difficult access, were believed to be impregnable, extols the grace of God in this particular. When he says that God had given him feet like hinds’ feet, he means that he had given him unusual swiftness, and such as does not naturally belong to men. The sense, therefore, is, that he had been aided by God in an extraordinary manner, so that like a roe he climbed with amazing speed over inaccessible rocks. He calls the strongholds, which, as conqueror, he had obtained by right of war, his high places; for he could justly boast that he took possession of nothing which belonged to another man, inasmuch as he knew that he had been called to occupy these fortresses by God. When he says that his hands had been taught and framed to war, he confesses that he had not acquired his dexterity in fighting by his own skill, nor by exercise and experience, but had obtained it as a gift through the singular goodness of God. It is true in general, that strength and skill in war proceed only from a secret virtue communicated by God; but David immediately after shows that he had been furnished with greater strength for carrying on his wars than what men commonly possess, inasmuch as his arms were sufficiently strong to break even bows of brass in pieces True, he had by nature a vigorous and powerful bodily frame; but the Scripture describes him as a man of low stature, and the similitude itself which he here uses implies something surpassing the natural strength of man. In the following verse, he declares that it was by the grace of God alone that he had escaped, and been kept in perfect safety: Thou hast also given me the shield of thy salvation. By the phrase, the shield of God’s salvation, he intimates, that if God had not wonderfully preserved him, he would have been exposed unprotected to many deadly wounds; and thus God’s shield of salvation is tacitly opposed to all the coverings and armor with which he had been provided. He again ascribes his safety to the free goodness of God as its cause, which he says had increased him, or more and more carried him forward in the path of honor and success; for, by the word increase, he means a continuation and an unintermitted and ever growing augmentation of the tokens of the divine favor towards him.
By the enlargement of his steps, he intimates that God had opened up to him an even and an accommodating pathway through places to which there was before no means of access; for there is in the words an implied contrast between a large and spacious place and a narrow spot, out of which a person cannot move his foot. The meaning is, that when David was reduced to the greatest distress, and saw no way of escape, God had graciously brought him out of his straits and difficulties. This is a lesson which may be highly useful for correcting our distrust. Unless we see before us a beautiful and pleasant plain, in which the flesh may freely enjoy itself, we tremble as if the earth would sink under our feet. Let us, therefore, remember, that the office of enlarging our ways and making them level belongs to God, and is here justly ascribed to him. In short, the Psalmist subjoins the effect of this instance of the grace of God towards him, namely, that his feet had not staggered or slipped; in other words, no resistance, adversity, or calamity, which had befallen him, had been able to deprive him of courage or cast him into despair.
Psalm 18:37-40
Psalm 18:37-40 37. I will pursue my enemies, and will overtake them; nor will I return till I have consumed them. 38. I have afflicted [or smitten] them, so that they were not able to rise; they have fallen under my feet. 39. Thou hast girded me with strength for the war; thou hast bowed down my enemies under me. 40. And thou hast given me the neck of my enemies, and those who hated me I have destroyed.
The point on which David insists so much is, that of showing from the effect or issue, that all his victories were to be traced to the favor of God; and from this it follows that his cause was good and just. God, no doubt, sometimes grants successes even to the ungodly and wicked; but he at length shows by the issue, that he was all the while opposed to them and their enemy. It is his servants alone who experience such tokens of his favor as he shewed towards David, and he intends by these to testify that they are approved and accepted by him. We are apt to think that David here speaks too much after the manner of a soldier, in declaring that he will not cease from the work of slaughter until he has destroyed all his enemies; or rather that he has forgotten the gentleness and meekness which ought to shine in all true believers, and in which they should resemble their heavenly Father; but as he attempted nothing without the command of God, and as his affections were governed and regulated by the Holy Spirit, we may be assured that these are not the words of a man who was cruel, and who took pleasure in shedding blood, but of a man who faithfully executed the judgment which God had committed to him. And, indeed, we know that he was so distinguished for gentleness of disposition as to abhor the shedding of even a single drop of blood, except in so far as duty and the necessity of his office required. We must, therefore, take into consideration David’s vocation, and also his pure zeal, which was free from all perturbation of the flesh. Moreover, it should be particularly attended to that the Psalmist here calls those his enemies whose indomitable and infatuated obstinacy merited and called forth such vengeance from God. As he represented the person of Christ, he inflicted the punishment of death only on those who were so inflexible that they could not be reduced to order by the exercise of a mild and humane authority; and this of itself shows, that there was nothing in which he more delighted than to pardon those who repented and reformed themselves. He thus resembled Christ, who gently allures all men to repentance, but breaks in pieces, with his iron rod, those who obstinately resist him to the last. The sum of these verses is, that David, as he fought under the authority of God, being chosen king by him, and engaging in no undertaking without his warrant, was assisted by him, and rendered invincible against the assaults of all his enemies, and enabled even to discomfit vast and very powerful armies. Farther, let us remember, that under this type there is shadowed forth the invincible character and condition of the kingdom of Christ, who, trusting to, and sustained by, the power of God, overthrows and destroys his enemies, — who, in every encounter, uniformly comes off victorious, — and who continues king in spite of all the resistance which the world makes to his authority and power. And as the victories secured to him involve a security of similar victories to us, it follows that there is here promised us an impregnable defense against all the efforts of Satan, all the machinations of sin, and all the temptations of the flesh. Although, therefore, Christ can only obtain a tranquil kingdom by fighting, let us not on that account be troubled, but let it be enough to satisfy us, that the hand of God is always ready to be stretched forth for its preservation. David was, for a time, a fugitive, so that it was with difficulty he could save his life, by taking shelter in the dens of wild beasts; but God, at length, made his enemies turn their backs, and not only put them to flight, but also delivered them over to him, that he might pursue and utterly discomfit them. In like manner, our enemies for a time may be, as it were, just ready to put the knife to our throat to destroy us, but God, at length, will make them not only to flee before us, but also to perish in our presence, as they deserve. At the same time, let us remember what kind of warfare it is to which God is calling us, against what kind of persons he will have us to contend, and with what armor he furnishes us, that it may suffice us to have the devil, the flesh, and sin overthrown and placed under our feet by his spiritual power. With respect to those to whom he has given the power of the sword, he will also defend them, and not suffer them to be unrighteously opposed, provided they reign under Christ, and acknowledge him as their head. As to the words, interpreters almost unanimously render the beginning of the 40th verse, My enemies have turned the back, a phrase of the same import as, They have been put to flight; but as the Hebrew word ערף, oreph, properly signifies the head or neck, we may very suitably view the words as meaning that God gave David the neck of his enemies, inasmuch as he delivered them into his hands to be slain.