The very passage you refer to in Philippians 2 says that the Lord Jesus 'thought it not robbery to be equal with God' (verse 6).
You refer to John 1.14 which says the Lord Jesus' glory is 'the glory as of the only begotten of the Father, full of grace and truth'; a resounding testimony to His deity.
It seems, however, you have come to this site with the express purpose of denying among the most central doctrines of Biblical Christianity.
Jesus was also sent to this earth to preach the kingdom of God.
Luk 4:43 – “And He said unto them, I must preach the kingdom of God to other cities also: for therefore am I sent.”
Jesus Christ confirmed here that He was sent by God and His goal was to preach the kingdom of God to mankind.
Here is also proof that Jesus came to preach the kingdom of God.
Luk 8:1 – “And it came to pass afterward, that he went throughout every city and village, preaching and showing the glad tidings of the kingdom of God: and the twelve were with him.”
If Jesus did not come to preach and show the glad tidings of the kingdom of God, it all would have been just been fables.
Jesus explained to the people that He knew from where He came from and to where He is going.
Joh 8:14 – “Jesus answered and said unto them, Though I bear record of myself, yet my record is true: for I know whence I came, and whither I go; but ye cannot tell whence I come, and whither I go.”
With Jesus’ hearing did He say the following Himself and admitted that He is not of this world and He came to bear witness unto the truth.
Joh 18:36 – “My kingdom is not of this world…”
Joh 18:37 – “….To this end was I born, and for this cause came I into the world, that I should bear witness unto the truth.”
The three texts above confirm that Jesus knew from where He came from and that He came to bear witness unto the truth.
Another goal of Jesus’ visit to this world was to destroy the works of the devil (Satan). Satan was already in the beginning of the creation of Adam and Eve, on this world.
1 Joh 3:8 “He that committeth sin is of the devil; for the devil sinneth from the beginning. For this purpose the Son of God was manifested, that he might destroy the works of the devil.” It confirms here that the devil (Satan) sinned from the beginning of creation.
Jesus laid down His life for mankind and we are also requested to have this same love towards our brothers.
1 Joh 3:16 – “Hereby perceive we the love of God, because he laid down his life for us: and we ought to lay down our lives for the brethren.”
Jesus came and took all sin upon His shoulders and died for us so that we may have a chance to obtain eternal life. He also taught mankind that the love we have for our brothers must be just as strong that we will lay down our lives for them. Here we also find another confirmation of God’s Almighty love for us to send His Son to be the Redeemer for our sins.
Jesus also came to inform people how and what they must do to be saved.
1 Joh 5:1-3 – “Whosoever believeth that Jesus is the Christ is born of God: and every one that loveth him that begat loveth him also that is begotten of him. By this we know that we love the children of God, when we love God, and keep his commandments. For this is the love of God, that we keep his commandments: and his commandments are not grievous.” This is one of the most important texts in the Bible and the one that is ignored the most.
God’s love for mankind is so great that He sent Jesus, His own Son, as atonement for man’s sin.
1 Joh 4:10 – “Herein is love, not that we loved God, but that he loved us, and sent his Son to be the propitiation for our sins.”
The unselfish love of God to send His Son to this earth to die for man’s sin is revealed here. Man now has a chance again to be with the heavenly Father. Jesus’ willingness to come down to this earth proves His love and obedience towards God and His love for mankind. Jesus knew exactly what lay ahead for Him but still came. His work on this earth was perfect and succeeded every time. He was nailed to the cross and, three days later, he was resurrected from the grave. Thereafter He was taken up to heaven. Is that not fantastic to know that we have a chance to be with God Almighty one day?