'Holy' in the Bible

The governor told them that they should not eat any of the most holy food until a priest arose with Urim and Thummim [to determine God’s will in the matter].

Then Nehemiah, who was the governor, and Ezra the priest and scribe, and the Levites who taught the people said to all the people, “This day is holy to the Lord your God; do not mourn or weep.” For all the people were weeping when they heard the words of the Law.

Then Ezra said to them, “Go [your way], eat the rich festival food, drink the sweet drink, and send portions to him for whom nothing is prepared; for this day is holy to our Lord. And do not be worried, for the joy of the Lord is your strength and your stronghold.”

So the Levites quieted all the people, saying, “Be still, for the day is holy; do not be worried.”

“So You made known to them Your holy Sabbath,And gave them commandments, statutes, and law,Through Your servant Moses.

As for the peoples of the land who bring merchandise or any grain on the Sabbath day to sell, we will not buy from them on the Sabbath or on a holy day; and we will give up raising crops during the seventh year [leaving the land uncultivated], and forgive every debt.

for the showbread; for the continual grain offerings and the continual burnt offerings; [for the offerings on] the Sabbaths, the New Moons, the [feasts at] appointed times; for the holy things, for the sin offerings to make atonement for Israel; and for all the work of the house of our God.

Now the leaders of the people lived in Jerusalem; but the rest of the people cast lots to bring one [person] out of ten to live in Jerusalem, the holy city, while nine-tenths remained in the other cities.

All the Levites in the holy city totaled 284.

And I commanded the Levites to purify themselves and come and guard the gates to keep the Sabbath day holy. O my God, remember me concerning this also and have compassion on me according to the greatness of Your lovingkindness.