The "Davidic line" refers to the lineage of kings descended from King David, a significant figure in the Hebrew Bible. According to biblical tradition, God promised David that his descendants would rule over Israel forever, establishing a royal dynasty. This lineage is important in Jewish history and is often associated with the expectation of a future Messiah. In Christian belief, the Davidic line is also significant as it is believed that Jesus is a descendant of David, fulfilling the Old Testament prophecies about the Messiah. This connection emphasizes the importance of David's lineage in both Judaism and Christianity, linking historical and spiritual narratives.