'Ministry' in the Bible

Now Moses was faithful in [the administration of] all God’s house, [but only] as a ministering servant, [his ministry serving] as a testimony of the things which were to be spoken afterward [the revelation to come in Christ];

But as it is, Christ has acquired a [priestly] ministry which is more excellent [than the old Levitical priestly ministry], for He is the Mediator (Arbiter) of a better covenant [uniting God and man], which has been enacted and rests on better promises.