New Revised Standard Version
His authority shall grow continually, and there shall be endless peace for the throne of David and his kingdom. He will establish and uphold it with justice and with righteousness from this time onward and forevermore. The zeal of the LORD of hosts will do this.

Contemporary English Version
His power will never end; peace will last forever. He will rule David's kingdom and make it grow strong. He will always rule with honesty and justice. The LORD All-Powerful will make certain that all of this is done.

New American Bible
His dominion is vast and forever peaceful, Upon David’s throne, and over his kingdom, which he confirms and sustains By judgment and justice, both now and forever. The zeal of the LORD of hosts will do 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.

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.

the increase

2 Samuel 7:16 And thy house shall be faithful, and thy kingdom for ever before thy face, and thy throne shall be firm for ever.

Psalm 2:8 Ask of me, and I will give thee the Gentiles for thy inheritance, and the utmost parts of the earth for thy possession.

Psalm 72:8-11 And he shall rule from sea to sea, and from the river unto the ends of the earth. . . .

Psalm 89:35-37 Once have I sworn by my holiness: I will not lie unto David: . . .

Jeremiah 33:15-21 In those days, and at that time, I will make the bud of justice to spring forth unto David, and he shall do judgment and justice in the earth. . . .

Daniel 2:35,44 Then was the iron, the clay, the brass, the silver, and the gold broken to pieces together, and became like the chaff of a summer's threshing floor, and they were carried away by the wind: and there was no place found for them: but the stone that struck the statue became a great mountain, and filled the whole earth. . . .

Daniel 7:14,27 And he gave him power, and glory, and a kingdom: and all peoples, tribes, and tongues shall serve him: his power is an everlasting power that shall not be taken away: and his kingdom that shall not be destroyed. . . .

Luke 1:32,33 He shall be great and shall be called the Son of the Most High. And the Lord God shall give unto him the throne of David his father: and he shall reign in the house of Jacob for ever. . . .

1 Corinthians 15:24-28 Afterwards the end: when he shall have delivered up the kingdom to God and the Father: when he shall have brought to nought all principality and power and virtue. . . .

to establish it

Isaiah 11:3-5 And he shall be filled with the spirit of the fear of the Lord, He shall not judge according to the sight of the eyes, nor reprove according to the hearing of the ears. . . .

Isaiah 31:1,2 Woe to them that go down to Egypt for help, trusting in horses, and putting their confidence in chariots, because they are many: and in horsemen, because they are very strong: and have not trusted in the Holy One of Israel, and have not sought after the Lord. . . .

Psalm 45:4-6 With thy comeliness and thy beauty set out, proceed prosperously, and reign. Because of truth and meekness and justice: and thy right hand shall conduct thee wonderfully. . . .

Psalm 72:1-3,7 A psalm on Solomon. . . .

Hebrews 1:8 But to the Son: Thy throne, O God, is for ever and ever: a sceptre of justice is the sceptre of thy kingdom.

Revelation 19:11 And I saw heaven opened: and behold a white horse. And he that sat upon him was called faithful and true: and with justice doth he judge and fight.

the zeal

Isaiah 37:32 For out of Jerusalem shall go forth a remnant, and salvation from mount Sion: the zeal of the Lord of hosts shall do this.

Isaiah 59:16,17 And he saw that there is not a man: and he stood astonished, because there is none to oppose himself: and his own arm brought salvation to him, and his own justice supported him. . . .

Isaiah 63:4-6 For the day of vengeance is in my heart, the year of my redemption is come. . . .

2 Kings 19:31 For out of Jerusalem shall go forth a remnant, and that which shall be saved out of mount Sion: the zeal of the Lord of hosts shall do this.

Ezekiel 36:21-23 And I have regarded my own holy name, which the house of Israel hath profaned among the nations to which they went in. . . .