Isaiah 62:6
“I have set watchmen upon thy walls, O Jerusalem, which shall never hold their peace day nor night: ye that make mention of the Lord, keep not silence,”
Thou shalt no more be termed Forsaken; neither shall thy land any more be termed Desolate: but thou shalt be called Hephzi–bah, and thy land Beulah: for the Lord delighteth in thee, and thy land shall be married.
For as a young man marrieth a virgin, so shall thy sons marry thee: and as the bridegroom rejoiceth over the bride, so shall thy God rejoice over thee.
I have set watchmen upon thy walls, O Jerusalem, which shall never hold their peace day nor night: ye that make mention of the Lord, keep not silence,
And give him no rest, till he establish, and till he make Jerusalem a praise in the earth.
The Lord hath sworn by his right hand, and by the arm of his strength, Surely I will no more give thy corn to be meat for thine enemies; and the sons of the stranger shall not drink thy wine, for the which thou hast laboured:
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“Except the Lord build the house, they labour in vain that build it: except the Lord keep the city, the watchman waketh but in vain.”
“For Zion’s sake will I not hold my peace, and for Jerusalem’s sake I will not rest, until the righteousness thereof go forth as brightness, and the salvation thereof as a lamp that burneth.”
“Thy watchmen shall lift up the voice; with the voice together shall they sing: for they shall see eye to eye, when the Lord shall bring again Zion.”
“I will stand upon my watch, and set me upon the tower, and will watch to see what he will say unto me, and what I shall answer when I am reproved.”
“Behold, I have graven thee upon the palms of my hands; thy walls are continually before me.”