'Inheritance' in the Bible

Then Samuel took a small container of olive oil and poured it on Saul's head. Samuel kissed him and said, "The Lord has chosen you to lead his people Israel! You will rule over the Lord's people and you will deliver them from the power of the enemies who surround them. This will be your sign that the Lord has chosen you as leader over his inheritance.

So let my lord the king now listen to the words of his servant. If the Lord has incited you against me, may he take delight in an offering. But if men have instigated this, may they be cursed before the Lord! For they have driven me away this day from being united with the Lord's inheritance, saying, 'Go on, serve other gods!'