Thou hast also turned the edge of his sword - That is, Thou hast turned it away, so that when it is raised to strike, it does not descend on the object aimed at by the blow. The meaning is, that he had not been successful in battle, or had been defeated.
And hast not made him to stand in the battle - To stand firm; to hold his ground. He has been driven back; his forces have fled.

Thou hast also turned the edge of his sword - The arms and military prowess of thy people are no longer of any use to them; Thou art against them, and therefore they are fallen. In what a perilous and hopeless situation must that soldier be who, while defending his life against his mortal foe, has his sword broken, or its edge turned; or, in modern warfare, whose gun misses fire! The Gauls, when invaded by the Romans, had no method of hardening iron; at every blow their swords bended, so that they were obliged, before they could strike again, to put them under their foot or over their knee, to straighten them; and in most cases, before this could be done, their better armed foe had taken away their life! The edge of their sword was turned, so that they could not stand in battle; and hence the Gauls were conquered by the Romans.

Thou hast also turned the edge of his sword,.... Or the "sharpness" (a) of it blunted it, so that it could do no execution: the disciples of Christ were not allowed the use of the temporal sword to defend their master; and his house, his kingdom, not being of this world, Matthew 26:51, other weapons were put into their hands; the sword of the Spirit, which is the word of God; and the edge of this was blunted, with respect to the Jews, being of little or no efficacy among them; it was turned off by them, and put away from them; but then it was turned towards the Gentiles, and was powerful and effectual among them; Christ girt it on his thigh, and rode forth in his glory and majesty, conquering, and to conquer, and by it subdued many, who fell under him, and gave up themselves unto him; see Ephesians 6:17, and ere long, with the twoedged sword, which proceeds out of his mouth, will he smite the antichristian nations; and the remnant of those that escape at the battle of Armageddon shall be slain with it, Revelation 19:15,
and hast not made him to stand in the battle; but to fall in it, being delivered up into the hands of wicked men, of justice, and death; and yet, by dying, he put away sin, finished it, made an end of it, and destroyed it; he conquered Satan, and led him captive; overcame the world, the spite and malice of it, and its prince; and abolished death itself.
(a) "acumen", Junius & Tremellius, Piscator.