'Lack' in the Bible

Now therefore, O Lord, the God of Israel, keep with Your servant David, my father, that which You have promised him, saying, ‘You shall not lack a man to sit on the throne of Israel, if only your sons take heed to their way, to walk in My law as you have walked before Me.’

then I will establish your royal throne as I covenanted with your father David, saying, ‘You shall not lack a man to be ruler in Israel.’

For the Lord humbled Judah because of Ahaz king of Israel, for he had brought about a lack of restraint in Judah and was very unfaithful to the Lord.