David speaks of the wicked person's behavior as if it were his clothing. AT: "He cursed other people as often as he wore clothing" or "He cursed people all the time" (See: [[rc://en/ta/man/translate/figs-metaphor]])
Possible meanings are: 1) He spoke curses so often that they became a part of his identity. "the curses that he speaks are part of who he is" or 2) the curse that he spoke happened to him. "his whole being was cursed by the curse he spoke" (See: [[rc://en/ta/man/translate/figs-metaphor]])
This refers to how oil soaks into bones when rubbed on the skin. AT: "like olive oil soaks into a person's bones when it is rubbed on his skin" (See: [[rc://en/ta/man/translate/figs-explicit]])