Jamieson, Fausset and Brown on Micah 5:10

10. cut off thy horses ... chariots--namely, those used for the purposes of war. Israel had been forbidden the use of cavalry, or to go to Egypt for horses (De 17:16), lest they should trust in worldly forces, rather than in God (Psa 20:7). Solomon had disregarded this command (1Ki 10:26, 28). Hereafter, saith God, I will remove these impediments to the free course of My grace: horses, chariots, &c., on which ye trust. The Church will never be safe, till she is stripped of all creature trusts, and rests on Jehovah alone [Calvin]. The universal peace given by God shall cause warlike instruments to be needless. He will cut them off from Israel (Zec 9:10); as she will cut them off from Babylon, the representative of the nations (Jr 50:37; 51:21).