God sent Jesus because trying to understand God is like a 3 dimensional being trying to comprehend a 5 dimensional being (like Interstellar, http://ultraculture.org/blog/2014/12/16/heres-visual-guide-10-dimensions-reality/), except God transcends all 10 dimensions. That’s why when asked the question "what does God look like" will bring in varied answers, from a Gandalf/Zeus/Dumbledore-looking father figures to glowing ball of light or pillars of fire.Maybe God is a deep booming voice from above. But we cannot, by our own power, comprehend God for He is incomprehensible, and this is called the transcendence of God. Therefore we look to Christ and the Cross.

John 1:18 No one has ever seen God, but the one and only Son, who is himself God and is in closest relationship with the Father, has made him known.

John 6:46 No one has seen the Father except the one who is from God; only he has seen the Father.

John 14:6-7 Jesus answered, “I am the way and the truth and the life. No one comes to the Father except through me. If you had known Me, you would have known My Father also; from now on you know Him, and have seen Him.

Matthew 11:27 All things have been handed over to me by my Father, and no one knows the Son except the Father, and no one knows the Father except the Son and anyone to whom the Son chooses to reveal him.

Colossians 1:15 The Son is the image of the invisible God, the firstborn over all creation. 

Hebrews 1:3 The Son is the radiance of God’s glory and the exact representation of his being, sustaining all things by his powerful word. After he had provided purification for sins, he sat down at the right hand of the Majesty in heaven.