There is an old saying, “there is none so deaf as those who will not hear”. It suggests that sometime deafness is self-inflicted because we don’t like what we are hearing. There are many people in the world today who say they have never heard God speak to them. Perhaps the problem is self-inflicted because they don’t want to hear what God has to say to them.
When you hear God’s voice it’s very hard not to obey without feeling guilty.
To really hear God’s voice I have to be in personal communication with Him. In my public and private life I must be aware of His presence at all times.
John 8:47 Anyone who belongs to God listens gladly to the words of God. But you don’t listen because you don’t belong to God.”