'Lack' in the Bible

so that the Lord may carry out His promise which He spoke concerning me, saying, ‘If your sons are careful of their way, to walk before Me in truth with all their heart and with all their soul, you shall not lack a man on the throne of Israel.’

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 before Me as you have walked.’

then I will establish the throne of your kingdom over Israel forever, just as I promised to your father David, saying, ‘You shall not lack a man on the throne of Israel.’