Exodus 28:35-38 Amplified Bible (AMP)

35. Aaron shall wear the robe when he ministers, and its sound shall be heard when he goes [alone] into the Holy of Holies before the Lord and when he comes out, lest he die there.

36. And you shall make a plate of pure gold and engrave on it, like the engravings of a signet, holy to the lord. [Exod. 39:30.]

37. You shall fasten it on the front of the turban with a blue cord.

38. It shall be upon Aaron's forehead, that Aaron may take upon himself and bear [any] iniquity [connected with] the holy things which the Israelites shall give and dedicate; and it shall always be upon his forehead, that they may be accepted before the Lord [in the priest's person]. [Luke 24:44; Heb. 8:1, 2.]

Exodus 28