Why full humanity of Jesus Christ is necessary?

In our weekly Bible study in Gachibowli we are learning about "Christ-The person". Pastor Mathew George is taking the session in a very systematical way.

Jesus Christ is fully human and fully God at the same time. To understand this clearly we need to
study the two aspects of it
1. Humanity of Christ
2. The deity(divinity) of Christ

Today we learned about the topic "Is it necessary for Jesus to come as a human? And if so why?"

There are seven reasons why this is necessary?

1. Representative Obedience
Luke 4:13, Genesis 2:15-3:7, Romans 5:18,19
Therefore as by one offense sentence came on all men to condemnation, even so by the righteousness of One the free gift came to all men to justification of life.
For as by one man's disobedience many were made sinners, so by the obedience of One shall many be made righteous.(Romans 5:18,19)

Adam's disobedience was cleared by the obedience of Christ.

2. Substitute Sacrifice
Hebrews 2:14-17
For surely it is not angels he helps, but Abraham's descendants(Heb 2:16)
To deliver the humanity from punishment of sin, He took the form of a man.

3. One mediator between God and man.
1 Timothy 2:5
For God is one, and there is one Mediator between God and man, the Man Christ Jesus
He is presently the mediator between God and man , since He knows our pains and temptations well. Because He went through all these

4. To full fill God's original purpose of man to rule over creation
When God created Adam, He gave him full authority over everything on earth. But Adam surrendered that to Satan by disobeying God.
But Jesus came to restore that
And Jesus came and spoke to them, saying, All authority is given to Me in Heaven and in earth(Mathew 28:18)

5. To show an example and a pattern in our life
1 Peter 2:21, Hebrew 4:14-15, Hebrew 12:2
Since then we have a great High Priest who has passed into the heavens, Jesus the Son of God, let us hold fast our profession.For we do not have a high priest who cannot be touched with the feelings of our infirmities, but was in all points tempted just as we are, yet without sin.(Heb 4:14,15)

6. To give us the pattern for redeemed bodies
1 Corinthians 15:42-44, Colossians 1:18
Jesus proved that and He is the first born after death. Our hope is that we all will receive this transformed which Jesus received after resurrection.

And He is the Head of the body, the church, who is the Beginning, the First-born from the dead, that He may be pre-eminent in all things.(Colo 1:18)

7. To sympathize with us as a High priest
Hebrews 2:8, Hebrews 4:16

To give us the confidence that you can reach out to the throne of Grace any time.

Jesus is fully man and fully God.