15:21 in the extreme south: Or in the Negev (see study note on 1:4). The Hebrew word negeb can refer either to the general direction (“south”) or the desert region named “Negev.” • The location of Eder is otherwise unknown. Some propose translating this word as “Arad” because Arad should be about here in the list and was too important to have been left out. This translation would simply reverse two Hebrew letters that are very similar in shape.