There are many cultists who vehemently deny that the Lord Jesus Christ is fully God and fully Man. Obviously they do not really understand the reasons why it was necessary for God to become Man. So we need to address this from Scripture (and everything stated here can be backed up with Scripture):
1. Mankind was created in the image of God in order to have eternal fellowship with God -- Father, Son, and Holy Spirit.
2. Because of Adam’s sin mankind was separated from God, and without the New Birth no one can see or enter into the Kingdom of God.
3. Because God is absolutely holy and righteous, sin not only led to physical death, but would also lead to the Second Death -- eternal separation from God.
4. God has no pleasure in the the death of the wicked, nor in the eternal damnation of any human being. Hell (the Lake of Fire) was created for the devil and his angels.
5. But the only way for God to be reconciled to mankind would be for the sin debt of the whole world to be paid in full. Obviously no human being could pay this debt.
6. But because of God’s mercy, grace, and love, God chose to provide a remedy through His Son. The Lord Jesus Christ -- the Lamb of God -- would by Himself pay the full penalty for “the sin of the world” by the sacrifice of Himself (an offering to God the Father).
7. Because Jesus of Nazareth was fully God and fully sinless Man, He could not only suffer and die on behalf of every sinner, but He could also rise again from the dead after three days and three nights. And that is exactly what He did.
8. So the reason why God had to become Man was to remove the sin barrier between God and mankind, and at the same time destroy the power of sin, death, Hades, Hell, and Satan at the cross. The resurrection of Christ was evidence that this had been accomplished.
9. However, only those who repent (turn away from their sins and idols) and believe wholeheartedly that Jesus is God who died for their sins and rose again for their justification will be reconciled to God and receive the gift of eternal life. They will also experience the New Birth when they receive Christ into their souls as Lord and Savior.
10. God offers salvation freely to “whosoever” will obey the Gospel. But those who do not obey the Gospel will be damned. So if you have not obeyed the Gospel, God now commands you to repent and believe on the Lord Jesus Christ.
That is true Nehemiah6.
The only way mankind could have salvation is there had to be a sinless man that fulfilled the law without fault which Jesus said not one tittle or jot shall pass from the law until all is fulfilled.
Without the shedding of blood there is no remission of sins but in the Old Testament the blood of animals could only cover their sins and there was a remembrance of them every year in which they had to be covered again for the blood of animals could not completely take away their sins.
But the blood of Christ completely takes away sins.
This plan was before God laid down the foundation of the world.
That is why the Bible says Jesus is the beginning of creation even though He was not born until 4000 years later.
In the beginning was the Word, and the Word with God, and the Word was God.
All things were created by Him and without Him not one thing was created that was created.
And the Word became flesh.
In the beginning was the plan of God to come in the future in flesh, and that plan was with God before He laid down the foundation of the world, and that plan was God manifest in the flesh.
All things were created with the plan of God to come in flesh and without that plan God would of not created anything He created because Jesus is the reason creation is successful, eternal life, and judging the angels and people.
The Lamb was slain from the foundation of the world.
God calls things that have not happened yet as though they already happened for if it is a plan of God to happen in the future it is the same as if it happened in the beginning for it will surely come to pass with no hindrance.
In John 17 Jesus said the Father loved Him in the beginning and then said that the glory that He had before the world was He wants the saints to have the same glory and that they may be where He is at and behold His glory for the Father loved Him before the foundation of the world.
Jesus was speaking as a man because the glory He had at the beginning could not be talking about Him being God for the saints could not receive that glory but Jesus as a man was praying that the saints could be in heaven with Him and behold His glory as He sits on the throne in heaven.
God came as a man and that plan was already in the beginning but it was the same thing as if it already happened.