'Brother' in the Bible

Therefore, this is what the LORD says about Josiah's son Jehoiakim, king of Judah, "They won't lament for him with these words: "How terrible, my brother, How terrible, my sister!' They won't lament for him with these words: "How terrible, lord, How terrible, your majesty!'

Each person was to set free his male and female slaves who were Hebrews, so that no Jewish person would enslave his brother.