This is a question everyone asks at one point in their lives, and is never mastered. But learning to hear his voice is very important and just as important to know the voice of the devil. Now Rarely Jesus will speak to us with an obvious voice but on occasion he does. I wil state only a few ways to hear his voice for now, But these are some of the basic ways he speaks. You see God will often times speak to us through another person, such as an encouraging word. Or a wise teaching to be learned, or a powerful message of salvation and freedom. I will say this now, God is NOT a god of condemption or A god of law,He is a god of love, peace, joy, warmth, he makes us giggle and cry tears of joy for no reason at all. He speaks to us through our spirit the most, also known as our hearts or our inner man( the holy spirit) have you ever felt your soul tug you to do something? Even if its just to go to sleep? That is god speaking to you. Have you ever had a sense of knowing? such as somehow knowing something amazing is about happen? That is God speaking to you. He aslo loves to speak through music, and best of all his word. Now the devil also speaks to us, he will use our thoughts to trick us- negitive thoughts only. If you ever think you are useless, or how you can never do anything right that is not you speaking its the devil. He will even somtimes use christians to speak to you. I once went to a friends house for help with a question, he intended to help me but i left with a sense of sadness and had become very confused with my faith. That was the devil because god is not a god of confusion. Also saying words outloud is a powerful thing, but be carefure not to say negitive things about yourself or others outloud because the devil will jump on that. If negitive thoughts come to your mind say scripture out loud until the thoughts or negitive feelings go away. Praying to god outloud is also a fantastic way to grow in him, I have more to say but this will do for now, keep strong in the lord and always know he deeply loves you:]