Leviticus 8:30

“You shall make holy garments for Aaron your brother, for glory and for beauty.

“You shall put them on Aaron your brother and on his sons with him; and you shall anoint them and ordain them and set them apart as holy, that they may minister to Me as priests.

“Now this is what you shall do to them to set them apart as holy to minister as priests to Me: take one bull from the herd and two rams without blemish,

“You shall gird them with sashes, Aaron and his sons, and bind caps on them, and they shall have the priesthood by a perpetual statute. So you shall ordain Aaron and his sons.

“Then you shall take some of the blood that is on the altar and some of the anointing oil, and sprinkle it on Aaron and on his garments and on his sons and on his sons’ garments with him; so he and his garments shall be set apart as holy, as well as his sons and his sons’ garments with him.

‘These Yahweh had commanded to be given them from the sons of Israel in the day that He anointed them. It is a perpetual statute throughout their generations.’”

Moses and Aaron were among His priests, And Samuel was among those who called on His name; They would call upon Yahweh and He would answer them.