Psalms 110:6

“He shall judge among the heathen - Among the “nations.” That is, he shall set up a kingdom, or shall rule over the nations of the earth. He shall come to execute judgment and justice, and shall apportion to people what is due to them. See the notes at Isaiah 11:3-5. He shall fill the places with the dead bodies - He shall make a great slaughter - indicative of conquest, and of the subjugation of the world to himself. It would be “as if” the bodies of the slain in battle strewed the ground, or filled the valleys of the earth. He shall wound the heads - The same word is used here that occurs in the previous verse, and that is there rendered “shall strike.” It is the language of “conquest,” as…”

“Judge - Condemn and punish them. The places - Or, the place of battle. Dead bodies - Of his enemies. Heads - All those princes who oppose him. But this and the like passages are not to be understood grossly, but spiritually, according to the nature of Christ's kingdom. Psalms 110:7”

“judge: Sa1 2:10; Isa 2:4, Isa 11:3, Isa 42:1, Isa 42:4, Isa 51:5; Joe 3:12-16; Mic 4:3; Joh 5:22; Rev 19:11 fill: Isa 34:2-8, Isa 43:2-4, Isa 66:16, Isa 66:17; Eze 38:21, Eze 38:22, Eze 39:4, Eze 39:11-20; Rev 14:20 wound: Psa 68:21; Gen 3:15; Hab 3:13 many: or, great Psalms 110:7”