'Instructions' in the Bible
They shall carry out the duties for him and for the whole congregation before the Tent of Meeting, doing the service of the tabernacle.
“Aaron will be gathered to his people [in death]; for he shall not enter the land which I have given to the children of Israel, because you [both] rebelled against My command at the waters of Meribah.
Then Jeshua the son of Jozadak and his brothers the priests, and Zerubbabel the son of Shealtiel and his brothers arose, and they built the altar of the God of Israel, to offer burnt offerings on it, as it is written in the Law of Moses, the man of God.
“Artaxerxes, king of kings, to Ezra the priest, the scribe of the Law of the God of heaven, perfect peace (greetings). And now
“And I, Artaxerxes the king, issue a decree to all the treasurers in the provinces west of the [Euphrates] River, that whatever Ezra the priest, the scribe of the Law of the God of heaven, may require of you, it shall be done diligently and at once—
“You, Ezra, are to appoint magistrates and judges in accordance with the wisdom and instruction of your God which is in your hand, so that they may judge all the people who are in the province west of the [Euphrates] River; appoint those who know the laws of your God; and you may teach anyone who does not know them.
But his delight is in the law of the Lord,And on His law [His precepts and teachings] he [habitually] meditates day and night.