When God speaks of “A new covenant,” He makes the first one obsolete. And whatever is becoming obsolete (out of use, annulled) and growing old is ready to disappear.

Obey your [spiritual] leaders and submit to them [recognizing their authority over you], for they are keeping watch over your souls and continually guarding your spiritual welfare as those who will give an account [of their stewardship of you]. Let them do this with joy and not with grief and groans, for this would be of no benefit to you.

Otherwise, He would have needed to suffer over and over since the foundation of the world; but now once for all at the consummation of the ages He has appeared and been publicly manifested to put away sin by the sacrifice of Himself.

Every priest stands [at his altar of service] ministering daily, offering the same sacrifices over and over, which are never able to strip away sins [that envelop and cover us];