'Ministering' in the Bible

There was a bell and a pomegranate, a bell and a pomegranate, all around the hem of the robe, to be used in ministering, just as the Lord had commanded Moses.

Now Samuel was ministering before the Lord. The boy was dressed in a linen ephod.

We also accept responsibility, as is written in the law, for bringing the firstborn of our sons and our cattle and the firstborn of our herds and of our flocks to the temple of our God, to the priests who are ministering in the temple of our God.

On that day men were appointed over the storerooms for the contributions, first fruits, and tithes, to gather into them from the fields of the cities the portions prescribed by the law for the priests and the Levites, for the people of Judah took delight in the priests and Levites who were ministering.

When they go out to the outer court to the people, they must remove the garments they were ministering in, and place them in the holy chambers; they must put on other garments so that they will not transmit holiness to the people with their garments.

A river of fire was streaming forth and proceeding from his presence. Many thousands were ministering to him; Many tens of thousands stood ready to serve him. The court convened and the books were opened.

Then the devil left him, and angels came and began ministering to his needs.

He was in the wilderness forty days, enduring temptations from Satan. He was with wild animals, and angels were ministering to his needs.

Are they not all ministering spirits, sent out to serve those who will inherit salvation?