Nehemiah 6:17-19

Also in those days the nobles of Judah sent many letters to Tobiah, and the letters of Tobiah came to them. For many in Judah were pledged to him, because he was the son-in-law of Shechaniah the son of Arah, and his son Jehohanan had married the daughter of Meshullam the son of Berechiah. Also they reported his good deeds before me, and reported my words to him. Tobiah sent letters to frighten me.