New Living Translation
His government and its peace will never end. He will rule with fairness and justice from the throne of his ancestor David for all eternity. The passionate commitment of the LORD of Heaven’s Armies will make this happen!

American Standard Version
Of the increase of his government and of peace there shall be no end, upon the throne of David, and upon his kingdom, to establish it, and to uphold it with justice and with righteousness from henceforth even for ever. The zeal of Jehovah of hosts will perform this.

Berean Study Bible
Of the increase of His government and peace there will be no end. He will reign on the throne of David and over his kingdom, to establish and sustain it with justice and righteousness from that time and forevermore. The zeal of the LORD of Hosts will accomplish this.

Douay-Rheims Bible
His empire shall be multiplied, and there shall be no end of peace: he shall sit upon the throne of David, and upon his kingdom; to establish it and strengthen it with judgment and with justice, from henceforth and for ever: the zeal of the Lord of hosts will perform this.

English Revised Version
Of the increase of his government and of peace there shall be no end, upon the throne of David, and upon his kingdom, to establish it, and to uphold it with judgment and with righteousness from henceforth even for ever. The zeal of the LORD of hosts shall perform this.

King James Bible
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.

World English Bible
Of the increase of his government and of peace there shall be no end, on the throne of David, and on his kingdom, to establish it, and to uphold it with justice and with righteousness from that time on, even forever. The zeal of Yahweh of Armies will perform this.

Young's Literal Translation
To the increase of the princely power, And of peace, there is no end, On the throne of David, and on his kingdom, To establish it, and to support it, In judgment and in righteousness, Henceforth, even unto the age, The zeal of Jehovah of Hosts doth this.

Isaiah 9:7 Additional Translations ...