Exodus 28:35-43 NIV

35 Aaron must wear it when he ministers. The sound of the bells will be heard when he enters the Holy Place before the LORD and when he comes out, so that he will not die.
36 "Make a plate1 of pure gold and engrave on it as on a seal: holy to the LORD.2

References for Exodus 28:36

37 Fasten a blue cord to it to attach it to the turban; it is to be on the front of the turban.
38 It will be on Aaron's forehead, and he will bear the guilt3 involved in the sacred gifts the Israelites consecrate, whatever their gifts may be. It will be on Aaron's forehead continually so that they will be acceptable4 to the LORD.
39 "Weave the tunic5 of fine linen and make the turban6 of fine linen. The sash is to be the work of an embroiderer.

References for Exodus 28:39

40 Make tunics, sashes and headbands for Aaron's sons,7 to give them dignity and honor.8

References for Exodus 28:40

      41 After you put these clothes9 on your brother Aaron and his sons, anoint10 and ordain them. Consecrate them so they may serve me as priests.11

      References for Exodus 28:41

      42 "Make linen undergarments12 as a covering for the body, reaching from the waist to the thigh.

      References for Exodus 28:42

      43 Aaron and his sons must wear them whenever they enter the Tent of Meeting13 or approach the altar to minister in the Holy Place,14 so that they will not incur guilt and die.15 "This is to be a lasting ordinance16 for Aaron and his descendants.

      References for Exodus 28:43