The individual ostraca probably come from the same broken clay pot and were most likely written in a short period of time. They were written to Yaush (or Ya'osh), possibly the commanding officer at Lachish, from Hoshaiah (Hoshayahu), a military officer stationed in a city close to Lachish (possibly Mareshah). In the letters, Hoshaiah defends himself to Yaush regarding a letter he either was or was not supposed to have read.