Nehemiah 6:15-18

So the wall was finished on the twenty-fifth [day] of [the month] Elul, in fifty-two days. When all our enemies heard about it, and all the [Gentile] nations around us saw it, they lost their confidence; for they recognized that this work had been accomplished with the help of our God. Moreover, in those days many letters went from the nobles of Judah to Tobiah, and Tobiah’s letters came to them. For many in Judah were bound by oath to him because he was the son-in-law of Shecaniah the son of Arah, and his son Jehohanan had married the daughter of Meshullam the son of Berechiah.