Why did Isaiah say the messiah shall be called, THE MIGHTY GOD, and the everlasting Father?

He didn't- bad translators did. Lets look at the original Hebrew actually says and give an accurate translation:

כִּי יֶלֶד יֻלַּד לָנוּ בֵּן נִתַּן לָנוּ וַתְּהִי הַמִּשְׂרָה עַל שִׁכְמוֹ וַיִּקְרָא שְׁמוֹ פֶּלֶא יוֹעֵץ אֵל גִּבּוֹר אֲבִי עַד שַׂר שָׁלוֹם

כִּי יֶלֶד יֻלַּד לָנוּ = A child HAS been born to us

בֵּן נִתַּן לָנוּ = A son HAS been given to us

וַתְּהִי הַמִּשְׂרָה עַל שִׁכְמוֹ = And the government will be on his shoulders

וַיִּקְרָא שְׁמוֹ פֶּלֶא יוֹעֵץ אֵל גִּבּוֹר אֲבִי עַד And the wonderous advisor, the Mighty G-d, the eternal father HAS called his name

שַׂר שָׁלוֹם= Prince of Peace

So, there is no prophecy about the messiah here- it is in ther PAST tense, not the future tense. It is referring to an event that has already happened. Nor do the names you refer to apply to the child in question- they apply to G-d who caused the child to be born.

Because the Messiah is God visiting humanity during that time. And what an impact He made!

And this was written 700+ years before Jesus. The Dead Sea Scrolls (scrolls of Israel) proves this.

And additionally - do not let anyone tell you this is not about the Messiah.

This section of Isaiah (chapter 7 thru 11) are filled with prophecies of Messiah. The ancient Rabbis found at least 16 Messianic prophecies in chapters 7 to 12 of the book of Isaiah. (see Isaiah 9:6, 11:1, etc.) In fact, the entire 11th chapter of Isaiah was recognized as referring to Messiah and his kingdom! So look at the context of where Isaiah 7.14 fits – it is Messianic!

The only portion of Scripture in which the ancient Rabbis found more Messianic prophecies is Isaiah chapters 49 to 54.

Jesus is also “Mighty God” and “Eternal Father.” This does not mean that he usurps the authority and position of Jehovah, who is “God our Father.” (2 Corinthians 1:2) “He [Jesus] . . . gave no consideration to a seizure, namely, that he should be equal to God.” (Philippians 2:6) He is called Mighty God, not Almighty God. Jesus never thought of himself as God Almighty, for he spoke of his Father as “the only true God,” that is, the only God who should be worshiped. (John 17:3; Revelation 4:11) In the Scriptures, the word “god” can mean “mighty one” or “strong one.” (Exodus 12:12; Psalm 8:5; 2 Corinthians 4:4) Before Jesus came to earth, he was “a god,” “existing in God’s form.” After his resurrection, he returned to an even higher position in the heavens. (John 1:1; Philippians 2:6-11) Further, the designation “god” carries an additional implication. Judges in Israel were called “gods”—once by Jesus himself. (Psalm 82:6; John 10:35) Jesus is Jehovah’s appointed Judge, “destined to judge the living and the dead.” (2 Timothy 4:1; John 5:30) Clearly, he is well named Mighty God.

The title “Eternal Father” refers to the Messianic King’s power and authority to give humans the prospect of eternal life on earth. (John 11:25, 26) The legacy of our first parent, Adam, was death. Jesus, the last Adam, “became a life-giving spirit.” (1 Corinthians 15:22, 45; Romans 5:12, 18) Just as Jesus, the Eternal Father, will live forever, so obedient mankind will enjoy the benefits of his fatherhood eternally.—Romans 6:9.

Jesus is also “Mighty God” and “Eternal Father.” This does not mean that he usurps the authority and position of Jehovah, who is “God our Father.” (2 Corinthians 1:2)

He is called Mighty God, not Almighty God. Jesus never thought of himself as God Almighty, for he spoke of his Father as “the only true God,” that is, the only God who should be worshiped.

Before Jesus came to earth, he was “a god,” “existing in God’s form.” After his resurrection, he returned to an even higher position in the heavens. Philippians 2:6-11 Further, the designation “god” carries an additional implication. Judges in Israel were called “gods” once by Jesus himself. (Psalm 82:6

Jesus is Jehovah’s appointed Judge, “destined to judge the living and the dead.” (2 Timothy 4:1) Clearly, he is well named Mighty God.

The title “Eternal Father” refers to the Messianic King’s power and authority to give humans the prospect of eternal life on earth.

The legacy of our first parent, Adam, was death. Jesus, the last Adam, “became a life-giving spirit.”

Just as Jesus, the Eternal Father, will live forever, so obedient mankind will enjoy the benefits of his fatherhood eternally.

In the prophecy at Isaiah 9:6 concerning the Messiah, the title “Mighty God” is applied to the promised Prince of Peace.

Jesus was given the power and authority to provide everlasting life to humans, therefore, that makes him the father of everlasting life. However, in no way does this mean that he is greater than his Father. Also, in that same scripture Jesus is called the Prince of Peace, but as we know, wherever there is a prince, there is a king that rules over him. The king is Jehovah God.

Jesus is considered to be a god, and so is Satan. 2 Corinthians 4:4 refers to Satan as being the god of this world. However, "mighty god" tells us that Jesus has power beyond other God's. But I'm sure that you will agree that being Mighty God is not as powerful as being an Almighty God. The title of Almighty is only reserved for one, Jehovah God (Ps 91:1 and Job 21:15). There can only be one Almighty!

Because Jesus was the mighty God and the everlasting father.

Because Isaiah the prophet was divinely inspired by the Holy Spirit to write those words.

Um...he didn't.

Nowhere.

Besides, the *book* of "Isaiah" was written by at least 3 people, over a very long time period -- not by one guy named "Isaiah."

John 10 …29"My Father, who has given them to Me, is greater than all; and no one is able to snatch them out of the Father's hand. 30"I and the Father are one

God goes by many names......

Names of God (God goes by many names to many to list here):

http://smilegodlovesyou.org/names.html