*Minor differences ignored. Grouped by changes, with first version listed as example.
Some trust in chariots. I do not restrict this to the enemies of Israel, as is done by other interpreters. I am rather inclined to think that there is here a comparison between the people of God and all the rest of the world. We see how natural it is to almost all men to be the more courageous and confident the more they possess of riches, power and military forces. The people of God, therefore, here protest that they do not place their hope, as is the usual way with men, in their military forces and warlike apparatus, but only in the aid of God. As the Holy Spirit here sets the assistance of God in opposition to human strength, it ought to be particularly noticed, that whenever our minds come to be occupied by carnal confidence, they fall at the same time into a forgetfulness of God. It is impossible for him, who promises himself victory by confiding in his own strength, to have his eyes turned towards God. The inspired writer, therefore, uses the word remember, to show, that when the saints betake themselves to God, they must cast off every thing which would hinder them from placing an exclusive trust in him. This remembrance of God serves two important purposes to the faithful. In the first place, however much power and resources they may possess, it nevertheless withdraws them from all vain confidence, so that they do not expect any success except from the pure grace of God. In the second place, if they are bereft and utterly destitute of all succor, it notwithstanding so strengthens and encourages them, that they call upon God both with confidence and constancy. On the other hand, when ungodly men feel themselves strong and powerful, being blinded with pride, they do not hesitate boldly to despise God; but when they are brought into circumstances of distress, they are so terrified as not to know what to become. In short, the Holy Spirit here recommends to us the remembrance of God, which, retaining its efficacy both in the want and in the abundance of power, subdues the vain hopes with which the flesh is wont to be inflated. As the verb nzkyr, nazkir, which I have translated we will remember, is in the conjugation hiphil, some render it transitively, we shall cause to remember. But it is no new thing in Hebrew for verbs to be used as neuter which are properly transitive; and, therefore, I have adopted the exposition which seems to me the most suitable to this passage.
Some trust in chariots - This (see the introduction to the psalm) seems to be a "general chorus" of the king and the people, expressing the fullest confidence in God, and showing the true ground of their reliance. The general meaning is, that their entire trust was in God. This is put in strong contrast with others, who relied, some on their chariots, and some on their horses, while "they" relied alone on God. They who trusted in horses and in chariots would be overcome; they who trusted in God alone would triumph. The word rendered chariots - רכב rekeb - means properly riding, and then a vehicle for "riding," a wagon, a chariot. Here it refers to the war-chariot, or the vehicle for carrying armed men into battle. These furnished great advantages in war, by the speed with which they could be driven against an enemy, and by the facilities in fighting from them. They were usually very simple. They consisted of "a light pole suspended between and on the withers of a pair of horses, the after end resting on a light axle tree, with two low wheels. Upon the axle stood a light frame, open behind, and floored for the warrior and his charioteer, who both stood within. On the sides of the frame hung the war-bow, in its case; a large quiver with arrows and darts had commonly a particular sheath. In Persia, the chariots, elevated upon wheels of considerable diameter, had four horses abreast; and in early ages, there were occasionally hooks or scythes attached to the axles." - Kitto, "Cyclo." In early ages these constituted a main reliance in determining the result of a battle.
And some in horses - Some in cavalry, commonly a very material reliance in war. The use of horses in war was early known in the world, for we find mention of them in the earliest periods of history.
But we will remember the name of the Lord our God - That is, we will remember God - the name, as before remarked, often being used to denote the person. The meaning is, We will not forget that our reliance is not on armies, but on God, the living God. Whatever instrumentality we may employ, we will remember always that our hope is in God, and that he only can give success to our arms.
Some trust in chariots - The words of the original are short and emphatic: These in chariots; and these in horses; but we will record in the name of Jehovah our God. Or, as the Septuagint, μεγαλυνθησομεθα, "we shall be magnified." Or, as the Vulgate, invocabimus, "we shall invoke the name of the Lord." This and the following verse I suppose to be the words of David and his officers. And the mention of chariots and horses makes it likely that the war with the Ammonites and Syrians is that to which reference is made here; for they came against him with vast multitudes of horsemen and chariots. See 2-Samuel 10:6-8. According to the law, David could neither have chariots nor horses; and those who came against him with cavalry must have a very great advantage; but he saw that Jehovah his God was more than a match for all his foes, and in him he trusts with implicit confidence.
Some trust in chariots, and some in horses,.... That is, in chariots and horses prepared for war; which, besides their use for carriage, did great annoyance to the enemy in battle, and were very terrible to them, and were greatly trusted in by those that possessed them, Deuteronomy 20:1; such chariots as were called "currus falcati", that had scythes at the sides of them, which being drove with fury among the infantry, cut them down as grass is mown with scythes; such the old Canaanites used, which were very terrible, Joshua 17:16; and horses trained up for war do much execution in a battle by pawing and trampling; see Job 39:21; though these are vain things for safety, and not to be depended on, for salvation and victory are of the Lord, Psalm 33:17; and such are the chariots and horses of the sun, and the idols in which the Gentiles trusted, 2-Kings 23:11; and all external things in which men depend for salvation, as fleshly privileges, outward works of righteousness, morality, a profession of religion, a round of duties, &c. all which are disclaimed by those who know the way of life and salvation by Christ, Hosea 14:3;
but we will remember the name of the Lord our God; not any of the names by which the Lord God is called, as Elohim, Elshaddai, Jehovah, and the like; though each of these are worthy of remembrance, and greatly serve to encourage faith in him; but rather the perfections of God, such as the goodness, wisdom, and power of God, which are to be remembered and confided in; and not the friendship of princes, the schemes of human policy, and the outward forces of strength; or else God himself is intended, whose name is himself, and is a strong tower to the righteous: and to remember him is to bear him in mind, and not forget him; to have the desires of the soul towards him, and to the remembrance of him; and to make mention of him, of his names, attributes, word, and works; which is both for his glory and for the encouragement of faith in him, both in ourselves and others; it is to call upon his name in times of trouble, and at all times, and also to trust in him and not in an arm of flesh; for it stands opposed to trusting in chariots and horses; and it is to call to mind past instances of his goodness, wisdom, and power, and be thankful for them, and make use of them to engage confidence in him; and which should be done from the consideration of his being God and not man, and of his being our God, our covenant God and Father.
remember--or cause to remember, mention thankfully (1-Samuel 17:45; Psalm 33:16).
Remember - Trust in it.
*More commentary available at chapter level.