<p>7:13 <i>For he of whom these things are said belongs to another tribe, from which no one has ever served at the altar</i>- The &quot;He&quot; refers to the Melchizedek priest who was to be Messiah. &quot;Has ever&quot; makes the point that a new priesthood is now in view. The Lord Jesus serves at<i> the</i> altar; this is the altar at which the Levitical priests have no right to eat / fellowship, but we Christians do (13:10), suggesting that we in Christ are likewise there, serving at and eating at the heavenly altar which features so strongly in Revelation, as part of the Heavenly sanctuary which the tabernacle was a dim reflection of. The Lord Jesus is actively 'serving' there; He is not passive in Heaven, just waiting to return to earth.</p>