Priestly Implications of the Davidic Covenant

The covenant with David pertained to his regal house and kingdom and didn't directly implicate the priesthood. But Yahweh's approval of David's priestly actions in installing His ark in Jerusalem hinted at some sort of relation between the regal and priestly functions in connection with David. Later, Psalm 110, penned by David, showed that he understood that Yahweh was going to formally conjoin the kingship and the priesthood in the son promised to him in the covenant. This son was to be a priest-king, but of a different and enduring priestly order, indicating a new, everlasting covenant relationship between Yahweh and His people.