'Priest's' in the Bible

For the Levites left their suburbs and their possession, and came to Judah and Jerusalem: for Jeroboam and his sons had cast them off from executing the priest's office unto the LORD:

Now it came to pass, that at what time the chest was brought unto the king's office by the hand of the Levites, and when they saw that there was much money, the king's scribe and the high priest's officer came and emptied the chest, and took it, and carried it to his place again. Thus they did day by day, and gathered money in abundance.

Then Jehoiada the priest's son Zechariah was clothed by the Spirit of God, and he stood above the people and told them, "This is what God has to say: "Why are you breaking the LORD's commandments. You'll never be successful! Because you have abandoned the LORD, he has abandoned you.'"

After the Arameans left him very sick, Joash's own servants conspired against him because Joash had murdered Jehoiada the priest's son, and they killed him on his sick bed.