Listen! Your watchmen lift up their voices; together they shout for joy. When the LORD returns to Zion, they will see it with their own eyes.
NIV
Hark, your watchmen lift up their voices; together they sing for joy; for they shall see eye to eye the return of the Lord to Zion.
AMP
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.
KJV
Lift up a banner against the walls of Babylon! Reinforce the guard, station the watchmen, prepare an ambush! The LORD will carry out his purpose, his decree against the people of Babylon.
NIV
Set up a standard or signal [to spread the news] upon the walls of Babylon! Make the watch and blockade strong, set the guards, prepare the ambushes! For the Lord has both purposed and done that which He spoke against the inhabitants of Babylon.
AMP
Set up the standard upon the walls of Babylon, make the watch strong, set up the watchmen, prepare the ambushes: for the LORD hath both devised and done that which he spake against the inhabitants of Babylon.
KJV