'Priests and Levites' in the Bible

And David said unto all the congregation of Israel, If it seems good unto you, and that it is of the LORD our God, let us send out unto our brethren everywhere, that are left in all the land of Israel, and with them also to the priests and Levites who are in their cities and pasture lands, that they may gather themselves unto us:

And Shemaiah the son of Nethanel the scribe, one of the Levites, wrote them down before the king, and the leaders, and Zadok the priest, and Ahimelech the son of Abiathar, and before the heads of the fathers' houses of the priests and Levites: one father's house being taken for Eleazar, and one taken for Ithamar.

These likewise cast lots even as their brethren the sons of Aaron in the presence of David the king, and Zadok, and Ahimelech, and the heads of the fathers' houses of the priests and Levites; the principal fathers did even as their younger brethren.

And they departed not from the command of the king unto the priests and Levites concerning any matter, or concerning the treasuries.

And Hezekiah appointed the divisions of the priests and the Levites according to their divisions, every man according to his service, the priests and Levites for burnt offerings and for peace offerings, to minister, and to give thanks, and to praise in the gates of the camp of the LORD.

But many of the priests and Levites and heads of the fathers' houses, who were old men, who had seen the first house, when the foundation of this house was laid before their eyes, wept with a loud voice; and many shouted aloud for joy:

I make a decree, that all they of the people of Israel, and of his priests and Levites, in my realm, who are minded of their own freewill to go up to Jerusalem, may go with you.

Also we inform you, that concerning any of the priests and Levites, singers, gatekeepers, Nethinim, or servants of this house of God, it shall not be lawful to impose toll, tribute, or custom, upon them.

And at that time were some appointed over the chambers for the stores, for the offerings, for the firstfruits, and for the tithes, to gather into them out of the fields of the cities the portions required by the law for the priests and Levites: for Judah rejoiced for the priests and for the Levites who ministered.

And this is the record of John, when the Jews sent priests and Levites from Jerusalem to ask him, Who are you?