I am going to try an analogy to explain why there is a purpose in Jesus being both God and Man in union...
Just going by Scriptures and not use a "modem by way of comparison.
Search the Scriptures — They Are They Which Testify of Me — John 5:39
by Pastor J. C. O'Hair
During the forty days when the Son of God was showing Himself alive by many infallible proofs, He journeyed with two of His disciples and conversed with them. In the course of the conversation He asked of them a question in these words:
“O fools and slow of heart to believe all that the prophets have written. Ought not Christ to have suffered and entered into His glory?” “And beginning at Moses and all the prophets, He expounded unto them in all the Scriptures the things concerning Himself.” – Luke 24:27.
So He began with Genesis and closed with Malachi to show that He was the heart and center, the theme and subject of the Old Testament writers in prophecy, figure, type and shadow. Adam was a figure of Him which was to come. – Romans 5:14.
The coats of skin with which God covered the first two sinners, provided by sacrifice, was a type of the righteousness of God with which the sinner is clothed because he accepts by faith the great sacrifice of God’s only begotten Son on the cross. – II Corinthians 5:21.
Enoch’s testimony and translation spoke of the coming of Christ with His saints. – Jude 14.
Noah’s ark, pitched within and without, constructed according to God’s pattern, was judgment-proof and the only place of safety and security when His wrath was poured out in judgment upon an ungodly world; and it was, therefore, a type of Jesus Christ, the one and only ark of safety, the only way to escape from the condemnation of God. “There is therefore now no condemnation to them that are in Christ Jesus.” Romans 8:1. “In Christ Jesus.” “He that believeth not is condemned already.” – John 3:18.
Certainly Isaac, the well-beloved son of Abraham, was a type of Christ when He was offered on the altar by his father; and in other events in his life Joseph with his coat of many colors, envied, betrayed and sold by His brethren to the Gentiles, was a type of the true Joseph who came unto His own, who rejected Him, delivered Him to Pilate because of envy; sold Him for thirty pieces of silver, spat upon Him and demanded His death. On the throne of Pharaoh the saviour of the world, Joseph who told his brethren that God had used their conspiracy and rejection to His own glory was a type of the One who shall yet sit on His glorious earthly throne and bring the whole world in subjection to God. Genesis 45:8. When the Jews with wicked hands slew Him, it was because He was delivered according to the determinate counsel and foreknowledge of God. – Acts 2:23.
Moses said, “A prophet like unto me shall the Lord raise up.” Deuteronomy 18:15. So Moses, the mediator of the Sinai covenant, was a type of Christ.
The passover lamb by which the children of Israel were delivered from death was a type of Christ our passover Who is sacrificed for us. – I Corinthians 5:7.
Aaron the High Priest, the offerer, was a type of the Lord Jesus Christ, as were his offerings.
The feast of Jehovah were all typical of the work of redemption and blessing centered in the Lord Jesus Christ.
The tabernacle with its sanctuary was a type of that Holy thing which was conceived by God; the Word made flesh which tabernacled in our midst. The furniture, the color schemes, the materials, spoke of the character and work of the Holy Son of God.
Joshua, the leader and deliverer, is the Hebrew for Jesus. Samuel, prophet, priest and judge, a type of Jesus Christ, Prophet, Priest and King. Boaz, the redeemer kinsman, a type of the true Redeemer Kinsman. Job spoke of a daysman who could be the representative of both God and man. Christ alone, the one mediator between God and men, can do this acceptably. – Job 9:33.
Daniel spoke of the coming Christ as the smiting Stone in the second chapter and as the cut-off Messiah in the ninth chapter. The true King David can be none other than one who was nailed to Calvary’s tree. Isaiah prophesied the coming of the Child, the Son, Wonderful, Counsellor, Mighty God, everlasting Father, Prince of Peace. Christ alone could answer such a description;” “Immanuel.” – Isaiah 9:6-7:14.
The Fifty-third of Isaiah speaks of the suffering of Christ. Philip, from this Scripture, preached unto the eunuch, Christ. – Acts 8:35.
Ezekiel, Jeremiah, Zechariah, Malachi, and all of the Jewish prophets told of the coming of Christ. Paul reasoned from these Old Testament prophets that Jesus was the Christ. – Acts 18:22; Acts 13:27 to 30.
Beginning with the promise of the “Seed of the woman” in the first book of the Old Testament, Genesis 3:15, and closing with the statement that the “Lord whom ye seek shall suddenly appear in His holy temple,” in the last book of the Old Testament Scriptures, Malachi 3:21, there is the promise of the coming One Who fulfilled these Scriptures in His birth, life, ministry and suffering, death and resurrection. “When they had fulfilled all that was written of Him, they took Him down from the tree and laid Him in a sepulchre—But God raised Him from the dead.” – Acts 13:29 and 30.
Christ is mentioned by noun and pronoun about 6990 times in the New Testament Scripture.
We have listed hereunder some of the several hundred titles of our Lord Jesus Christ, the Man of the Book:
Genesis:
“The Seed of the Woman” 3:15
“Abraham’s Seed” 22:18
“Isaac’s Seed” 26:4
“Melchisedec” 14:18
“Shiloh” 49:10
Deuteronomy
“A Prophet like unto Moses” 18:15
Psalms
“His Anointed” 2:2
“The King of Glory” 24:10
Song of Solomon
“The Lily of the Valleys” 2:1
“The Rose of Sharon” 2:1
“Chiefest Among Ten Thousand” 5:10
“One Altogether Lovely” 5:16
Isaiah:
“Immanuel” 7:14
“Wonderful” 9:6
“Counsellor” 9:6
“Mighty God” 9:6
“Everlasting Father” 9:6
“Prince of Peace” 9:6
“A Root of Jesse” 11:10
“Man of Sorrows” 53:3
“A Root out of dry Ground” 53:2
“A Tender Plant” 53:2
Ezekiel:
“Plant of Renown” 34:29
Jeremiah:
“A Righteous Branch” 23:5
“The Lord our Righteousness” 23:6
Zechariah:
“My Servant the Branch” 3:8
“The Man whose name is the Branch” 6:12
Malachi:
“The Lord Whom Ye Seek” 3:1
“Sun of Righteousness” 4:2
Matthew:
“Jesus Christ the Son of David” 1:1
“The Son of Abraham” 1:1
“Jesus who is called Christ” 1:16
“Jesus Christ” 1:18
“Jesus” 1:21
“Emmanuel, God with us” 1:23
“King of the Jews” 2:2
“Christ” 2:4
“Governor, that shall rule my people Israel” 2:6
“The Young Child” 2:11
“My Son” 2:15
“A Nazarene” 2:23
“The Lord” 3:3
“My beloved Son in whom I am well pleased” 3:17
“The Son of God” 4:3
“Master” 8:19
“The Son of Man” 8:20
“The Bridegroom” 9:15
“Thou Son of David” 9:27
“He that should come” 11:3
“A Friend of Publicans and Sinners” 11:10
“One greater than the Temple” 12:6
“The Lord of the Sabbath day” 12:8
“My Servant whom I have chosen” 12:18
“My Beloved, in whom my soul is well pleased” 12:18
“A greater than Jonas” 12:41
“A greater than Solomon” 12:42 .
“This Man” 13:56
“The Christ, the Son of the living God” 16:16
“Good Master” 19:16
“Thy King” 21:5
“This Jesus, the Prophet of Nazareth of Galilee” 21:11
“The Stone which the builders rejected” 21:42
“The Head of the Corner” 21:42
“The King” 25:34
“The Shepherd” 26:31
“King of Israel” 27:42
Mark:
“One that hath authority” 1:22
“Jesus of Nazareth” 1:24
“The Holy One of God” 1:24
“Son of the Most High God” 5:7
“The Carpenter” 6:3
“Son of Mary” 6:3
“A Prophet” 6:4
“Christ, the son of the Blessed” 14:61
Luke:
“Son of the Highest” 1:32
“The Lord’s Christ” 2:26
“A Great Prophet” 7:16
“The Christ of God” 9:20
“He that cometh in the Name of the Lord” 19:18
“Christ, the chosen of God” 23:35
John:
“The Word” 1:1
“That Light” 1:8
“The True Light” 1:9
“The only begotten of the Father” 1:14
“The Lamb of God” 1:29
“The Messias” 1:41
“Him of whom Moses in the Law and the Prophets did write” 1:45
“He that cometh from Heaven” 3:31
“Thou art a Prophet” 4:19
“The Christ, the Saviour of the World” 4:42
“The Son” 5:23
“The Bread of Life” 6:35
“The Bread which came down from Heaven” 6:41
“A Good Man” 7:12
“The Light of the World” 8:12
“That I AM” 8:24
“The Door of the Sheep” 10:7
“The Good Shepherd” 10:11
“The Resurrection’’ 11:25
“Master and Lord” 13:13
“The Way” 14:6
“The Truth” 14:6
“The Life” 14:6
“The True Vine” 15:1
“The Man” 19:5
Acts:
“A Man. approved of God” 2:22
“Thine Holy One” 2:27
“Both Lord and Christ” 2:36
“Jesus Christ of Nazareth” 3:6
“The Holy One and the Just.” 3:14
“The Prince of Life” 3:15
“His Christ” 4:26
“A Prince and a Saviour” 5:31
“Thy Holy Child Jesus” 4:30
“The Just One” 7:52
“Son of Man” 7:56
“Unto Israel a Saviour Jesus” 13:23
“Another King Jesus” 17:7
Romans:
“Jesus Christ our Lord, of the Seed of David” 1:3
“Our Lord Jesus Christ” 5:11
“God blessed forever” 9:5
“The End of the Law for Righteousness” 10:4
“A Minister of . the Circumcision” 15:8
“A Root of Jesse” 15:12
I Corinthians:
“Righteousness” 1:30
“Sanctification” 1:30
“Redemption” 1:30
“The Lord of Glory” 2:8
“Foundation” 3:11
“Christ Our Passover” 5:7
“The Lord Jesus Christ by whom are all things” 8:6
“That Rock, Christ” 10:4
“Jesus is the Lord” 12:3
“The Last Adam” 15:45
“The Second Man, the Lord from Heaven” 15:47
II Corinthians:
“Thee Lord, the Spirit” 3:17
“Christ, the Image of God” 4:4
“God in Christ” 5:19
Ephesians:
“The Head over all Things” 1:22
“Our Peace” 2:14
“The One of whom the whole Family in Heaven and Earth is named” 3:15
“Christ, the Head of the Church” 5:23
“Master in Heaven” 6:9
Philippians:
“The One in the Form of God” 2:6 and 7
“The One in the Form of a Servant, the Likeness of Men” 2:7
“Jesus Christ, my Lord” 3:8
“The Saviour, the Lord Jesus Christ” 3:20
Colossians:
“His Dear Son or the Son of His Love” 1:13
“The Image of the Invisible God” 1:15
“The First-born of every Creature” 1:15
“The One by whom all. things consist” 1:17
“The First-born from the dead” 1:18
“The One in whom all fulness dwells” 1:19
“The One in whom are hid treasures of wisdom and knowledge” 2:3
“The One in whom dwelleth all fullness of the Godhead bodily” 2:9
“Christ, who is our Life” 3:4
I Timothy
“The King eternal” 1:17
“God manifest in the flesh” 3:16
“Potentate” 6:15
“King of Kings, Lord of Lords” 6:15
II Timothy:
“Our Saviour, Jesus Christ” 1:10
“The effulgence of His Glory” 1:3
Hebrews:
“Express Image of His Person” 1:3
“Captain of our Salvation” 2:10
“Merciful and faithful High Priest” 2:17
“Apostle and High Priest of our Profession” 3:1
“Builder of the House” 3:3
“A Priest after order of Melchisedec” 5:6
“Author of eternal Salvation” 5:9
“Forerunner, Jesus” 6:20
“An High Priest over the House of God” 10:21
“He that shall come” 10:37
“Author and Finisher of our Faith” 12:2
“Jesus, the Mediator of the New Covenant” 12:24
“The Lord, my Helper” 13:6
“Jesus Christ who is the same yesterday, today and forever” 13:8
James
“The Lord of Glory” 2:1
“The Husbandman” 5:7
I Peter
“A Lamb without Blemish and Spot” 1:19
“A stone of Stumbling” 2:8
“Rock of Offense” 2:8
“Shepherd and Bishop of your Souls” 2:25
“Chief Shepherd” 5:4
II Peter:
“The Day Star” 1:19
“Lord that bought us” 2:1
I John
“An Advocate” 2:1
“Our Propitiation” 2:2
“The Holy One” 2:20
II John:
“The Son of the Father” 1:3
Jude:
“Only Lord God” 1:4
Revelation:
“Jesus Christ, a faithful Witness” 1:5
“The first Begotten of the Dead” 1:5
“Prince of the Kings of the Earth” 1:5
“Alpha and Omega, the Beginning and the Ending” 1:8
“The First and the Last” 1:17
“He which searcheth the reins and hearts” 2:28
“The Morning Star” 2:28
“He that is holy. He that is true” 3:7
“Amen, the faithful and true Witness” 3:14
“Lord God Almighty, which was, and is, and is to come” 4:8
“Lion of the Tribe of Juda” 5:5
“Root of David” 5:5
“He that liveth forever and ever” 5:14
“The Lamb in the midst of the Throne” 7:17
“Lamb slain from the foundation of the World” 13:8
“King of Saints” 15:3
“Lord of Lords, and King of Kings 17:4
“Faithful and True” 19:11
“The Word of God” 19:13
“The Root and Offspring of David” 22:16