Here listening to Yahweh's voice means to both hear his words and obey what he says. Alternate translation: "Hear and obey what I say" (See: [[rc://en/ta/man/jit/figs-metonymy]])
Yahweh speaks of obeying his commands as if one were walking in them, like person would walk along a road. Alternate translation: "do everything that I am commanding you" (See: [[rc://en/ta/man/jit/figs-metaphor]])