21 Now issue an order to these men to stop work, so that this city will not be rebuilt until I so order.

Read Ezra 4:21 Using Other Translations

Give ye now commandment to cause these men to cease, and that this city be not builded, until another commandment shall be given from me.
Therefore make a decree that these men be made to cease, and that this city be not rebuilt, until a decree is made by me.
Therefore, issue orders to have these men stop their work. That city must not be rebuilt except at my express command.