“piercing the heart of the king’s enemies.” When the Messiah, Jesus Christ, comes back to earth and conquers it, he will kill the wicked people on earth as Psalm 45:5 says. That is one of the reasons that the next life will be so wonderful—no wicked people will be there.
[For more on the wicked being killed by Christ, see commentary on Isa. 11:4. For more on the death penalty, see commentary on Exod. 21:12. For more on evil people’s eventual annihilation in the Lake of Fire, see Appendix 4, “Annihilation in the Lake of Fire."]