NET
13 Let the king also be aware that if this city is built and its walls are completed, no more tax, custom, or toll will be paid, and the royal treasury will suffer loss.
Darby
13 Be it known therefore unto the king, that, if this city be built and the walls be completed, they will not pay tribute, tax, and toll, and in the end it will bring damage to the kings.
KJV
13 Be it known now unto the king, that, if this city be builded, and the walls set up [again, then] will they not pay toll, tribute, and custom, and [so] thou shalt endamage the revenue of the kings.