Nehemiah 4:6-9

So built we the wall; and all the wall was joined together unto the half thereof: for the people had a mind to work. But it came to pass, that when Sanballat, and Tobiah, and the Arabians, and the Ammonites, and the Ashdodites, heard that the walls of Jerusalem were made up, and that the breaches began to be stopped, then they were very wroth, and conspired all of them together to come and to fight against Jerusalem, and to hinder it. Nevertheless we made our prayer unto our God, and set a watch against them day and night, because of them.