Levitical Service Changes When the Ark No Longer Travels

David lowers the service age and explains why Levitical work has changed: the LORD has given rest, the ark will no longer be carried from place to place, and the Levites will assist priests and maintain regular worship. This is a significant institutional transition from mobile tabernacle to permanent temple. The recurring calendar of Sabbaths, new moons, and appointed feasts later supplies language echoed in New Testament discussions of sacred times.