How a person should behave is spoken of as if it were a way or path that person should travel. AT: "Teach me how you want me to live" or "Teach me to do what you want me to do" (See: [[rc://en/ta/man/translate/figs-metaphor]])
Yahweh keeping the writer safe from his enemies is spoken of as if Yahweh leads the writer on a level path where he will not stumble and fall. AT: "Keep me safe" (See: [[rc://en/ta/man/translate/figs-metaphor]])