Therefore now let it please you to bless the house of your servant, that it may continue forever before you: for you, O Lord GOD, have spoken it: and with your blessing let the house of your servant be blessed forever.
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Augustine of Hippo
AD 430
David, understanding this, says in the second book of Kings [Samuel] … “You did also speak of the house of your servant for a long time to come.” And, further on, “And now begin and bless the house of your servant that it may endure forever,” etc. At that time, David was about to beget his son through whom his lineage would be carried down to Christ; through whom, in turn, his house was to be everlasting—indeed, identified with the house of God. It was to be called the “house of David” because [it was] of David’s stock and, simultaneously, the “house of God” because it was a temple to God made not of stones but of people. In this house God’s people shall everlastingly dwell with their God and in their God, and God with his people and in his people, God filling his people, his people filled with their God, so that “God may be all in all”—the very same God being their prize in peace who was their strength in battle.
It was with this in view that, when Nathan had said, “And the Lord said ...