'Hear His Voice' in the Bible

And Pharaoh answered, "What fellow is the LORD, that I should hear his voice for to let Israel go?

Beware of him and hear his voice and anger him not: for he will not spare your misdeeds, yea and my name is in him.

And it was upon Aaron to serve: and to hear his voice in his going to the holy place before Jehovah, and in his coming out; and he died not