"the one whom you have anointed." Here this phrase refers to one whom Yahweh has chosen. Possible meanings are 1) "the people you have chosen" or "the nation you have chosen" or 2) "the king you have chosen."
# You shatter the head of the house of the wicked to lay bare from the base up to the neck
"The wicked people and their leader are like a man whose head you crush and whose body you strip naked from foot to neck" or "You kill the leader of the wicked people and completely remove all of the people's power"