Exodus 28:40

28:40 “For Aaron’s sons you are to make tunics, sashes, and headbands for glory and for beauty.

Exodus 29:8-9

29:8 You are to present his sons and clothe them with tunics 29:9 and wrap the sashes around Aaron and his sons and put headbands on them, and so the ministry of priesthood will belong to them by a perpetual ordinance. Thus you are to consecrate Aaron and his sons.

Exodus 39:27-29

39:27 They made tunics of fine linen – the work of a weaver, for Aaron and for his sons – 39:28 and the turban of fine linen, the headbands of fine linen, and the undergarments of fine twisted linen. 39:29 The sash was of fine twisted linen and blue, purple, and scarlet yarn, the work of an embroiderer, just as the Lord had commanded Moses.