'Priestly' in the Bible

When his time of priestly service was finished, he returned to his home.

and Annas the high priest was there, and Caiaphas and John and Alexander, and all others who were of high-priestly descent.

For God, whom I serve with my spirit by preaching the gospel of His Son, is my witness as to how continuously I mention you

to be a minister of Christ Jesus to the Gentiles. I minister as a priest the gospel of God, in order that my offering of the Gentiles may become acceptable [to Him], sanctified [made holy and set apart for His purpose] by the Holy Spirit.

It is true that those descendants of Levi who are charged with the priestly office are commanded in the Law to collect tithes from the people—which means, from their kinsmen—though these have descended from Abraham.

A person might even say that Levi [the father of the priestly tribe] himself, who received tithes, paid tithes through Abraham [the father of all Israel and of all who believe],

For the One of whom these things are said belonged [not to the priestly line of Levi but] to another tribe, from which no one has officiated or served at the altar.

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.