Ezra 4:18 - The letter H5407 which ye sent unto us hath been plainly read before me.
Ezra 4:23 - Now when the copy of king Artaxerxes' letter H5407 was read before Rehum, and Shimshai the scribe, and their companions, they went up in haste to Jerusalem unto the Jews, and made them to cease by force and power.
Ezra 5:5 - But the eye of their God was upon the elders of the Jews, that they could not cause them to cease, till the matter came to Darius: and then they returned answer by letter H5407 concerning this matter.