Rebecca Writes: Why was our Mediator called Christ?

Our Mediator was called Christ, because he was anointed with the Holy Ghost above measure;[1] and so set apart, and fully furnished with all authority and ability,[2] to execute the offices of prophet,[3] priest,[4] and king of his church,[5] in the estate both of his humiliation and exaltation.

John 3:34
For he whom God has sent utters the words of God, for he gives the Spirit without measure.
John 6:27
Do not labor for the food that perishes, but for the food that endures to eternal life, which the Son of Man will give to you. For on him God the Father has set his seal.

Matt. 28:18-20
And Jesus came and said to them, “All authority in heaven and on earth has been given to me. Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to observe all that I have commanded you. And behold, I am with you always, to the end of the age.”
Acts 3:21-22
. . . whom heaven must receive until the time for restoring all the things about which God spoke by the mouth of his holy prophets long ago. 22 Moses said, ‘The Lord God will raise up for you a prophet like me from your brothers. You shall listen to him in whatever he tells you.

Luke 4:18, 21
“The Spirit of the Lord is upon me,
because he has anointed me
to proclaim good news to the poor.
He has sent me to proclaim liberty to the captives
and recovering of sight to the blind,
to set at liberty those who are oppressed. . ."
And he began to say to them, “Today this Scripture has been fulfilled in your hearing.”
Heb. 4:14-15
Since then we have a great high priest who has passed through the heavens, Jesus, the Son of God, let us hold fast our confession. 15 For we do not have a high priest who is unable to sympathize with our weaknesses, but one who in every respect has been tempted as we are, yet without sin.
Heb. 5:7
In the days of his flesh, Jesus offered up prayers and supplications, with loud cries and tears, to him who was able to save him from death, and he was heard because of his reverence.
Psa. 2:6
As for me, I have set my King
on Zion, my holy hill.

Matt. 21:5
Say to the daughter of Zion,
‘Behold, your king is coming to you,
humble, and mounted on a donkey,
and on a colt, the foal of a beast of burden.’

Isa. 9:6-7
For to us a child is born,
to us a son is given;
and the government shall be upon his shoulder,
and his name shall be called
Wonderful Counselor, Mighty God,
Everlasting Father, Prince of Peace.
Of the increase of his government and of peace
there will be no end,
on the throne of David and over his kingdom,
to establish it and to uphold it
with justice and with righteousness
from this time forth and forevermore.
The zeal of the Lord of hosts will do this.

Phil. 2:8-11
And being found in human form, he humbled himself by becoming obedient to the point of death, even death on a cross. Therefore God has highly exalted him and bestowed on him the name that is above every name, so that at the name of Jesus every knee should bow, in heaven and on earth and under the earth, and every tongue confess that Jesus Christ is Lord, to the glory of God the Father.