'Lack' in the Bible

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

then I will make your royal throne secure, just as I agreed to do for your father David when I said, "You are to not lack a man to rule over Israel.'

because the LORD was humiliating Judah because of King Ahaz of Israel, since Ahaz had brought about a lack of restraint within Judah and had remained unfaithful to the LORD.