No one has seen God at any time. The one and only Son, who is in the bosom of the Father, he has declared him.

 So they asked him who he was; his answer was that he was nothing but a voice bidding men prepare the way for the king. The quotation is from Isaiah 40:3. All the gospels cite it ( Mark 1:3; Matthew 3:3; Luke 3:4). The idea behind it is this. Eastern roads were not surfaced and metalled. They were mere tracks. When a king was about to visit a province, when a conqueror was about to travel through his domains, the roads were smoothed and straightened out and put in order. What John was saying was: "I am nobody; I am only a voice telling you to get ready for the coming of the king, for he is on the way." 