Lev 26:8

“"Five of you will put a hundred to flight." Who are those five who can pursue a hundred? The number five is applied to both the praiseworthy and the culpable, for there were five wise virgins and five foolish; so also the number one hundred can be accepted in either way. Therefore if we belong to the five laudable ones, that is, the five wise virgins, we pursue one hundred of the foolish. If we fight wisely in matters of God's Word, if we discuss the law of the Lord prudently, we convince and put to flight a multitude of unbelievers. Similarly the number one hundred indicates both the faithful and the unfaithful. Under that number of years Abraham is recorded to have believed in God and been justified, while "the sinner of a hundred years shall be thought accursed." Now here a hundred unfaithful souls are put to flight by five wise men. Again, a hundred just men, who are so designated because of their perfection rather than their number, pursue many thousands of unbelievers. Indeed, devout teachers drive away countless demons, so they will not deceive the souls of believers with their old deceits.”

“"Your foes will be cut down by your sword." Who they are we mentioned above, but let us find out by what sword they are said to fall. The apostle Paul teaches us what this sword is when he says, "For the Word of God is living and efficient and keener than every two-edged sword and extending even to the joints of soul and spirit, of the members also and the marrow, and a discerner of the thoughts and intentions of the heart." This is the sword at whose edge our enemies will fall. For it is the Word of God which casts down all enemies and puts them under its feet, so that the whole world becomes subject to God. Do you wish to learn from still another epistle of Paul that the sword with which spiritual enemies are overcome is the Word of God? Listen to him as he provides arms for the soldiers of Christ: "Take unto you the helmet of salvation and the sword of the spirit, that is, the Word of God. With all prayer and supplication pray." By these words he declares very clearly that by the Word of God which is a two-edged sword our enemies will fall in our sight.”

“ורדפו מכם [AND FIVE] OF YOU SHALL PURSUE [A HUNDRED] — five of the weakest among you — and not alone of the most robust among you (Sifra, Bechukotai, Chapter 2 4). ‎חמישה מאה ומאה מכם רבבה FIVE [OF YOU SHALL PURSUE] A HUNDRED AND A HUNDRED… TEN THOUSAND — But is this the right proportion? Surely it should have stated only “and a hundred of you shall pursue two thousand (and not ten thousand)!? But the explanation is: a few who fulfill the commandments of the Torah cannot compare with the many who fulfill the commandments of the Torah (i. e. the greater the group of those loyal to the Torah, the greater is the morale and, under God’s blessing, the physical strength of each individual belonging to the group) (Sifra, Bechukotai, Chapter 2 4). 'ונפלו איביכם וגו AND YOUR ENEMIES SHALL FALL etc . — The repetition of this promise already expressed in v. 7 suggests that they will fall before you in a supernatural way (lit., not in the way of the world) (Sifra, Bechukotai, Chapter 2 4).”

“AND YOUR ENEMIES SHALL FALL BEFORE YOU BY THE SWORD. He assured them at first that they would chase their enemies and that they would fall by their sword, and then He stated again by way of repetition [in the verse before us], and your enemies shall fall before you by the sword, in order to give them fortitude of heart and strength so that five [of them would not be afraid] to pursue a hundred. He [furthermore promised that He] would put faintness into the heart of their enemies, so that a hundred would [in fact] flee before five, and would all fall by the sword of the five, for it would be possible that they [a hundred people] would flee because of the sword and because of their fear, but that they would not be able to kill them by the sword because of their few numbers [therefore He mentioned specifically that they would be able to put them to the sword too]. Rabbi Abraham ibn Ezra has said that this repetition [in our verse] means that they [the enemies] will fall continually, time after time, without regaining [their strength].”