Isaiah 9:6-7

6.   "For unto us a child is born, unto us a son is given: and the government shall be upon his shoulder: and his name shall be called Wonderful, Counsellor, The mighty God, The everlasting Father, The Prince of Peace. 

7.  Of the increase of his government and peace there shall be no end, upon the throne of David, and upon his kingdom, to order it, and to establish it with judgment and with justice from henceforth even for ever.  The zeal of the LORD of hosts will perform this."

Messianic Biblical position as written by Shalach Ministries:

Isaiah 9:6-7. 
In order to understand these passages we must read Isaiah 9:1-2 and determine what Isaiah is saying to his people, Israel.  "Nevertheless the dimness shall not be such as was in her vexation, when at the first he lightly afflicted the land of Zebulun and the land of Naphtali, and afterward did more grievously afflict her by the way of the sea, beyond Jordan, in Galilee of the nations. The people that walked in darkness have seen a great light: they that dwell in the land of the shadow of death, upon them hath the light shined."  

Isaiah prophesied the spiritual darkness that would exist in the land of Israel when the Messiah would come.  This spiritual darkness was to be less than when the land was first permitted of God to be judged by Syria under Benhadad in the reign of Baasha 
(I Kings 15:20), and the worse invasion of Israel by Hazael (II Kings 10:32-33).  As such, Isaiah reported that when the Messiah would come people who walked in darkness would see great light, the understanding of "God's Plan of Salvation".  

Isaiah 9:2 is quoted in Matthew 4:14-16, "That it might be fulfilled which was spoken by Esaias (Isaiah) the prophet, saying, The land of Zebulon and the land of Nephthalim, by the way of the sea, beyond Jordan, Galilee of the Gentiles; The people which sat in darkness saw great light; and to them which sat in the region and shadow of death light is sprung up.

Let us look at Isaiah 9:6-7 as translated in the Tanakh Bible written by the Jewish Publication Society (JPS), "For a child is born unto us, a son is given unto us; and the government is upon his shoulder; and his name is called Pele-joez-el-gibbor-Abi-ad-sar-shalom; That the government may be increased, and of peace there be no end, upon the throne of David, and upon his kingdom, to establish it, and to uphold it through justice and through righteousness from henceforth even for ever. The zeal of HaShem of hosts doth perform this."

Isaiah saw through the darkness of time a child being born unto Israel (national Israel, for the darkness of 8:21-22) who would become a great light unto the people of Zebulun, Nephtali, beyond Jordan, and Galilee of the nations [Gentiles].  It must be noted that the coming of Yeshua to redeem all mankind from sin and eternal death (both Jew and Gentile alike) was predestined by the infinite wisdom of God before the foundation of the world.  "And all that dwell upon the earth shall worship him, whose names are not written in the book of life of the Lamb slain from the foundation of the world" (Revelation 13:8). 

Whenever the Messiah makes His second appearance, He will not come as a suffering Messiah as at His first appearance (Isaiah 53), but as the Wondrous Advisor, the Mighty God, the Everlasting Father, the Prince of Peace.  He will establish David's throne and His Kingdom will have no end.  This is the only future hope for both Israel and the world.

If mankind was to be created with a free-will and the ability to either praise God with his mouth or curse God with his mouth, then God had to provide a plan of redemption for His creation. "But the tongue can no man tame: it is an unruly evil, full of deadly poison. Therewith bless we God, even the Father, and therewith curse we men, which are made after the similitude of God. Out of the same mouth proceedeth blessing and cursing. My brethren, these things ought not so to be" (James 3:9-10).  Jesus revealed the spirit of the unredeemed man, "O generation of vipers, how can ye, being evil, speak good things? for out of the abundance of the heart (inner spirit of man) the mouth speaketh" (Matthew 12:34). 

In summary, Yeshua was and is God's plan to buy back mankind's soul and spirit from Satan which was freely relinquished by Adam and Eve at the dawn of creation in the Garden of Eden (Genesis 3:6).  Thus, through God's mercy and Yeshua's love (John 3:16), mankind exercising his own free-will of faith in Yeshua's atonement, is now able to return to obedience and the Father's eternal presence through God's simple predestined plan of salvation [Yeshua].