*Minor differences ignored. Grouped by changes, with first version listed as example.
Their sword shall enter into their own heart - Their purposes will recoil on themselves; or they will themselves suffer what they had devised for others. See the same sentiment expressed in Psalm 7:15-16; Psalm 9:15; compare Esther 7:10.
And their bows shall be broken - They will be defeated in their plans. God will cut them off, and not suffer them to execute their designs.
Their sword shall enter into their own heart - All their execrations and maledictions shall fall upon themselves, and their power to do mischief shall be broken.
Their sword shall enter into their own heart,.... As Saul's did into his, 1-Samuel 31:4;
and their bows shall be broken; the meaning is, that their efforts shall be fruitless, and their attempts in vain; the mischief they have contrived and designed for others shall fall upon themselves; see Psalm 7:15; and therefore the saints should not be fretful and envious.
*More commentary available at chapter level.