Exodus 28:1

The Priests’ Garments

1“Then bring near to you aAaron your brother, and his sons with him, from among the people of Israel, to serve me as priestsAaron and Aaron’s sons, bNadab and Abihu, Eleazar and Ithamar.

Exodus 29:1

Consecration of the Priests

1“Now this is what you shall do to them to consecrate them, that they may serve me as priests. cTake one bull of the herd and two rams without blemish,

Numbers 18:7-19

7And dyou and your sons with you shall guard your priesthood for all that concerns the altar and ethat is within the veil; and you shall serve. I give your priesthood as a gift,
Hebrew service of gift
and gany outsider who comes near shall be put to death.”

8Then the Lord spoke to Aaron, “Behold, hI have given you charge of the contributions made to me, all the consecrated things of the people of Israel. I have given them to you ias a portion and to your sons as a perpetual due. 9This shall be yours of the most holy things, reserved from the fire: every offering of theirs, every grain offering of theirs and every jsin offering of theirs and every kguilt offering of theirs, which they render to me, shall be most holy to you and to your sons. 10In a most holy place shall you eat it. Every male may eat it; it is holy to you. 11This also is yours: the contribution of their gift, all the lwave offerings of the people of Israel. I have given them to myou, and to your sons and daughters with you, as a perpetual due. nEveryone who is clean in your house may eat it. 12 oAll the best of the oil and all the best of the wine and of the grain, pthe firstfruits of what they give to the Lord, I give to you. 13The first ripe fruits of all that is in their land, qwhich they bring to the Lord, shall be yours. rEveryone who is clean in your house may eat it. 14 sEvery devoted thing in Israel shall be yours. 15 tEverything that opens the womb of all flesh, whether man or beast, which they offer to the Lord, shall be yours. Nevertheless, uthe firstborn of man you shall redeem, and the firstborn of unclean animals you shall redeem. 16And their redemption price v(at a month old you shall redeem them) you shall fix at five shekels
A  shekel was about 2/5 ounce or 11 grams
in silver, according to the shekel of the sanctuary, xwhich is twenty gerahs.
17 yBut the firstborn of a cow, or the firstborn of a sheep, or the firstborn of a goat, you shall not redeem; they are holy. You shall sprinkle their blood on the altar and shall burn their fat as a food offering, with a pleasing aroma to the Lord. 18But their flesh shall be yours, as zthe breast that is waved and as the right thigh are yours. 19 aaAll the holy contributions that the people of Israel present to the Lord I give to you, and to your sons and daughters with you, as a perpetual due. abIt is a covenant of salt forever before the Lord for you and for your offspring with you.”
Copyright information for ESV