The term prophet had a wide meaning among the Israelites, since it also included people like Abraham, Moses, and Miriam.  That is why some so-called historical books are often called the early prophets.  Jewish traditions hold that there were 48 male prophets, and seven female prophets, Sarah, Miriam, Deborah, Hannah, Abigail, Huldah, and Esther.  Others have recognized Rebecca, Rachel, and Leah as female prophets also.  Thus, there is a wide range of written prophetic books in the Hebrew Bible or the Old Testament.  The Hebrew prophetic dominant message was a return to Yahweh and his laws.  They were to protect the poor, the orphans, and the widows.  Justice and righteousness dominate in their messages.  Yahweh would judge them.  Although some Israelites were sinners, they would have a bright future if they turned from their evil ways to Yahweh.