NET
17 In those days the aristocrats of Judah repeatedly sent letters to Tobiah, and responses from Tobiah were repeatedly coming to them.
Darby
17 Moreover in those days the nobles of Judah sent many letters to Tobijah, and those of Tobijah came to them.
KJV
17 Moreover in those days the nobles of Judah sent many letters unto Tobiah, and [the letters] of Tobiah came unto them.