"John 3:16 ... God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life."  This verse says that Jesus Christ is the only begotten Son of God. As it is true, God has not given birth to Jesus Christ. That is, Christ was not born, but he was begotten son by declaration. We will see from the Scripture when and how he became the begotten Son of God.

"Gen 3:15 And I will put enmity between thee and the woman, and between thy seed and her seed; it shall bruise thy head, and thou shalt bruise his heel. Luke 1:28 And the angel came in unto her, and said, Hail, thou that art highly favoured, the Lord is with thee: blessed art thou among women. 29 And when she saw him, she was troubled at his saying, and cast in her mind what manner of salutation this should be. 30 And the angel said unto her, Fear not, Mary: for thou hast found favour with God. 31 And, behold, thou shalt conceive in thy womb, and bring forth a son, and shalt call his name JESUS."  God has ordained that the seed of a woman would bruise the head of Satan.  So, Jesus was not the seed of God, but the seed of a woman.  God favoured Virgin Mary to be that woman.  "Heb 10:5 Wherefore when he cometh into the world, he saith, Sacrifice and offering thou wouldest not, but a body hast thou prepared me:"  The Holy Spirit and God the Most High have created a body in the womb of Mary from her own body, which was almost the same way God made Eve from the body of Adam.  Thus, Mary's own body produced the child and this was the seed of Mary. The person in “God the Word,” his soul came out of the Spirit body and entered this body and was born as a human baby boy. Thus, God the Word became flesh, a mere man.  In the incident of the birth of Jesus of Nazareth, God the Word did not become the Son of God. But he became 'flesh', a creation of God, the child from the seed of Virgin Mary.  Thus, the Word became flesh.  "John 1:14 And the Word was made flesh, and dwelt among us--"

The Bible says that 'God the Word' became flesh (a mere man). "John 1:14 And the Word was made flesh, and dwelt among us,---" He ceased to be equal with God and became a man and as a man, he humbled himself and obeyed God as a servant unto his death on the cross.  "Phil 2:5 ---, which was also in Christ Jesus: 6 Who, being in the form of God, thought it not robbery to be equal with God: 7 But made himself of no reputation, and took upon him the form of a servant, and was made in the likeness of men: 8 And being found in fashion as a man, he humbled himself, and became obedient unto death, even the death of the cross."  Jesus of Nazareth was dead on the cross and was buried.

Therefore, 'God the most High' exalted him to the uttermost high position so that every knee on all earth, on all hell and on all heaven should bow at his name. "Phil 2:9 Wherefore God also hath highly exalted him, and given him a name which is above every name: 10 That at the name of Jesus every knee should bow, of things in heaven, and things in earth, and things under the earth; 11 And that every tongue should confess that Jesus Christ is Lord, to the glory of God the Father."  'God the Most high' and 'God the Holy Spirit' raised him up from the dead.  At this time, God the Most high declared a decree that Jesus was his begotten Son. Second Psalm prophesied this. Book of Acts explains the fulfillment of prophecy. God did not give birth to a Son, but made him the begotten Son by declaration. On his resurrection day, which is the day which Christians celebrate as Easter day, Jesus became the begotten Son of God. This declaration is like adopting a person as his son by his godly authority. "Psa 2:7 I will declare the decree: the LORD hath said unto me, Thou art my Son; this day have I begotten thee. Acts 13:32 And we declare unto you glad tidings, how that the promise which was made unto the fathers, 33 God hath fulfilled the same unto us their children, in that he hath raised up Jesus again; as it is also written in the second psalm, Thou art my Son, this day have I begotten thee."

The following verses also reinforce the fact that the day of the resurrection of Jesus Christ is the day of his birth as the begotten Son of God by the declaration of God the Most High. "Col 1:18 And he is the head of the body, the church: who is the beginning, the firstborn from the dead; Rev 1:5 And from Jesus Christ, who is the faithful witness, and the first begotten of the dead,." 'God the Holy Spirit' consented to the action of God the Most High. "Rom 1:4 And declared to be the Son of God with power, according to the spirit of holiness, by the resurrection from the dead:" So, we know that Jesus Christ was declared as the Begotten Son of God on the resurrection day. That is, the birthday of Jesus Christ, the begotten Son, is the Easter day and the birthday of Jesus of Nazareth is the Christmas day, according to the Bible.

Christmas is the day that God the Word became flesh and was born as a baby boy.  God created the sun, the moon, the stars, the world with everything in it, the birds, the animals, the people, the germs, the bacteria, the atoms, and all other things that are created. This Great God decided that he should become the sacrifice to redeem his people.  Since God is eternal and he cannot die, he had to become a man, which is the Lamb of God, to die for the sins of the world.  God became a mere man on this day, which is the true Christmas day. 

As a man he lived a pure life and became a perfect sacrifice to be a propitiation for the sins of the people so that He may forgive the sins we have committed. "Rom 3:25 Whom God hath set forth to be a propitiation through faith in his blood, to declare his righteousness for the remission of sins that are past, through the forbearance of God;" As a man, Jesus Christ preached the gospel. Therefore, we can detect between the false and true gospel by comparing it with the gospel of Jesus Christ. "Matt 4:23 And Jesus went about all Galilee, teaching in their synagogues, and preaching the gospel of the kingdom, ---" Further, Jesus lived as an example so that the people may know how to live. Those who love God and believe his gospel will follow his steps in obedience. "1Pet 2:21 For even hereunto were ye called: because Christ also suffered for us, leaving us an example, that ye should follow his steps: 22 Who did no sin, neither was guile found in his mouth:---" Those who follow his life are the chosen ones of God to inherit his kingdom. God the Father who gave grace to the Man Jesus, will give grace to us also, as we strive to live a pure life. Grace is the very abiding and the power of 'God the Holy Spirit' and 'the Lord Jesus Christ' to enable us to live the life of Jesus Christ. It is not just a promise to take a sinner to heaven. In short, Christmas is a day of celebration for on that day God became a man.

Easter is also a day for celebration. Traditionally we celebrate it as the day of resurrection of Jesus Christ from the dead. We also celebrate his victory over death and rejoice in it. We know that 'God the Word' came from heaven, became a Man, accomplished his works and now he went back to heaven where he belongs. Even though it appears that way, it is much more than this. "Phil 2:5 ---, which was also in Christ Jesus: 6 Who, being in the form of God, thought it not robbery to be equal with God: 7 But made himself of no reputation, and took upon him the form of a servant, and was made in the likeness of men:." 

God the Word ceased to be God, he became a human, and humbled himself to be the servant of God. Therefore, God has raised this man to the utmost glory and honor of God so that every knee should bow to him.  Thus, the man Jesus was raised to the heavenly status of honor and power.  "Phil 2:9 -Wherefore God also hath highly exalted him, and given him a name which is above every name: 10 That at the name of Jesus every knee should bow, of things in heaven, and things in earth, and things under the earth; 11 And that every tongue should confess that Jesus Christ is Lord, to the glory of God the Father."

God wants us to humble ourselves and to live in the purity of Jesus, so that God may raise us also as he raised Jesus. "1Pet 1:3 Blessed be the God and Father of our Lord Jesus Christ, which according to his abundant mercy hath begotten us again unto a lively hope by the resurrection of Jesus Christ from the dead, 4.To an inheritance incorruptible, and undefiled, and that fadeth not away, reserved in heaven for you,." See, how our life is attached in hope with the rewarded life of Jesus Christ. He was the first fruit and we are right after him. If we suffer with him, we will rule with him. If we die with him, we will live with him. "2Tim 2:10 --- I endure all things for the elect's sakes, that they may also obtain the salvation which is in Christ Jesus with eternal glory. 11 It is a faithful saying: For if we be dead with him, we shall also live with him: 12 If we suffer, we shall also reign with him: if we deny him, he also will deny us:."  Now he is the Only Begotten Son. There are many begotten sons on the making. You can be one among them, with Jesus. "1Thes 4:17 Then we which are alive and remain shall be caught up together with them in the clouds, to meet the Lord in the air: and so shall we ever be with the Lord." Jesus was raised to heaven (caught up or raptures) on the Easter Day. Those who remain in him will be raised to heaven (caught up or raptures) on our resurrection day.

God became a man and came to the world on Christmas day. He came to die for the forgiveness of our sins, which we have committed.  He lived a life without sin and presented that as a sample life for us to live. God took this man to heaven, declared him as the Son of God and placed him on the throne of God on Easter day. Now as God, Jesus Christ helps his people supernaturally, by giving his grace, in order to make us able to live a sinless life as he has lived.  If we strive and become free from sin, Easter will give us hope of the same resurrection, the same adoption as sons, and the same access to the same throne. "2 Cor 8:9 For ye know the grace of our Lord Jesus Christ, that, though he was rich, yet for your sakes he became poor, that ye through his poverty might be rich. Rev 3:21 To him that overcometh will I grant to sit with me in my throne, even as I also overcame, and am set down with my Father in his throne".  Son of God was not born. A Man was declared to be the Son of God. That gives us hope that we may also be declared as sons of God to sit on his throne of God to rule the nations.  Is it not good news, which is the gospel?  God may declare also as the begotten son of God. Is it not a tremendous opportunity?  Why don't you go for it?