Jesus said in John 18:37, "For this I was born, and for this I came into the world, to bear witness to the truth. Every one who is of the truth hears my voice."

Only those who are of the truth can receive the truth, which is the voice of God. What is it to be "of the truth"? To be of the truth is to be birthed by the truth. It is to be born again by the truth.

https://www.desiringgod.org/messages/jesus-came-into-the-wor...