BoogerMan
The answer for your question lies in your comment: because of the Incarnation. Look after the dual nature and the hypostatic union of Jesus.
"For we do not say that the nature of the Word was changed and made flesh, nor yet that it was changed into the whole man (composed) of soul and body but rather (we say) that the Word, in an ineffable and inconceivable manner, having hypostatically united to Himself flesh animated by a rational soul, became Man and was called the Son of Man, not according to the will alone or by the assumption of a person alone, and that the different natures were brought together in a real union, but that out of both in one Christ and Son, not because the distinction of natures was destroyed by the union, but rather because the divine nature and the human nature formed one Lord and Christ and Son for us, through a marvelous and mystical concurrence in unity. . . . For it was no ordinary man who was first born of the Holy Virgin and upon whom the Word afterwards descended; but being united from the womb itself He is said to have undergone flesh birth, claiming as His own the birth of His own flesh. Thus [the holy Fathers] did not hesitate to speak of the holy Virgin as the Theokos." (Council of Ephesus)
"Following, then, the holy Fathers, we all unanimously teach that our Lord Jesus Christ is to us One and the same Son, the Self-same Perfect in Godhead, the Self-same Perfect in Manhood; truly God and truly Man; the Self-same of a rational soul and body; co-essential with the Father according to the Godhead, the Self-same co-essential with us according to the Manhood; like us in all things, sin apart; before the ages begotten of the Father as to the Godhead, but in the last days, the Self-same, for us and for our salvation (born) of Mary the Virgin Theotokos as to the Manhood; One and the Same Christ, Son, Lord, Only-begotten; acknowledged in Two Natures unconfusedly, unchangeably, indivisibly, inseparably; the difference of the Natures being in no way removed because of the Union, but rather the properties of each Nature being preserved, and (both) concurring into One Person and One Hypostasis; not as though He was parted or divided into Two Persons, but One and the Self-same Son and Only-begotten God, Word, Lord, Jesus Christ; even as from the beginning the prophets have taught concerning Him, and as the Lord Jesus Christ Himself hath taught us, and as the Symbol of the Fathers hath handed down to us." (Chalcedonian Definition)
"Furthermore, it is necessary to everlasting salvation; that he also believe faithfully the Incarnation of our Lord Jesus Christ. For the right Faith is, that we believe and confess; that our Lord Jesus Christ, the Son of God, is God and Man; God, of the Substance [Essence] of the Father; begotten before the worlds; and Man, of the Substance [Essence] of his Mother, born in the world. Perfect God; and perfect Man, of a reasonable soul and human flesh subsisting. Equal to the Father, as touching his Godhead; and inferior to the Father as touching his Manhood. Who although he is God and Man; yet he is not two, but one Christ. One; not by conversion of the Godhead into flesh; but by assumption of the Manhood into God. One altogether; not by confusion of Substance [Essence]; but by unity of Person. For as the reasonable soul and flesh is one man; so God and Man is one Christ; Who suffered for our salvation; descended into hell; rose again the third day from the dead." (Athanasian Creed)
Check this:
http://manonthemoon.byethost24.com/trinity/trinity-jehovahs-witnesses.pdf
Additionally, in the Old Testament we find a number of references to people who claimed that they saw God. For example, in Isaiah 6:1–5 Isaiah gives testimony of having seen God and he is worded because he knew the Old Testament concept that no man can see God and live, a truth that God had stated to Moses at Exodus 33:20. The answer to the apparent problem is simply that Isaiah saw God in a vision. Humans would surely die if they saw God openly displayed in all His infinite power and glory. It would be as if you or 1 were to stand a few inches away from the sun of our solar system. We would be instantly consumed and turned into a puff of smoke (see Hebrews 12:29).
But God can appear to man, either by vision or by concealing Himself in human form. A careful examination of Genesis 18 and Judges 13 should make this truth abundantly clear. This also explains why Jesus Himself could insist, in John 6:46, that no man had ever seen God the Father, yet at John 14:9 He could inform Philip, “...He who has seen Me has seen the Father.” (NASB)