'Priestly' in the Bible

The priestly sons of Aaron, moreover, shall blow the trumpets; and this shall be for you a perpetual statute throughout your generations.

According to their ability they gave to the treasury for the work 61,000 gold drachmas and 5,000 silver minas and 100 priestly garments.

Now it happened that while he was performing his priestly service before God in the appointed order of his division,

according to the custom of the priestly office, he was chosen by lot to enter the temple of the Lord and burn incense.

When the days of his priestly service were ended, he went back home.