'Lack' in the Bible

and so that the LORD may fulfill his promise that he spoke about me when he said, "If your sons pay attention to how they live by walking truthfully in my presence with all their heart and with all their soul, you will never lack a man on the throne of Israel.'

"Now therefore, LORD God of Israel, keep your promise that you made to my father, your servant David, when you said, "You will not lack a man to sit on the throne of Israel, if only your descendants will watch their lives, to live in my presence just as you have lived in my presence.'

then I'll make your royal throne secure forever, just as I agreed to do so for your father David when I said, "You are to not lack a man on the throne of Israel.'