31 “Make the robe of the ephod entirely of blue cloth, 32 with an opening for the head in its center. There shall be a woven edge like a collar around this opening, so that it will not tear. 33 Make pomegranates of blue, purple and scarlet yarn around the hem of the robe, with gold bells between them. 34 The gold bells and the pomegranates are to alternate around the hem of the robe.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 plate of pure gold and engrave on it as on a seal: holy to the Lord.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 guilt 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 acceptable to the Lord.
39 “Weave the tunic of fine linen and make the turban of fine linen. The sash is to be the work of an embroiderer. 40 Make tunics, sashes and caps for Aaron’s sons to give them dignity and honor. 41 After you put these clothes on your brother Aaron and his sons, anoint and ordain them. Consecrate them so they may serve me as priests.
42 “Make linen undergarments as a covering for the body, reaching from the waist to the thigh. 43 Aaron and his sons must wear them whenever they enter the tent of meeting or approach the altar to minister in the Holy Place, so that they will not incur guilt and die.
“This is to be a lasting ordinance for Aaron and his descendants. Exodus 28:31-43 NIV
The people outside of the tent may hear the position of the priest inside, by way of the bells. When he reaches the point of incense and offering, those on the outside would be joined to this by way of reflection and prayer. The bells were also a comfort, in that for as long as they could be heard, it was known that the person entering the presence of God, on their behalf, was yet alive.
according to the custom of the priestly office, he was chosen by lot to enter the temple of the Lord and burn incense.10And the whole multitude of the people were in prayer outside at the hour of the incense offering. 11And an angel of the Lord appeared to him, standing to the right of the altar of incense.…Luke 1:9-11
At the very head and forefront of all this ceremony is a plate of pure Gold. It bears the inscription "Holiness to the Lord", and one can not overstate this. Ceremonies are for us, they are a picture, but they apply no holiness upon the practitioner. You cannot wear God, nor hide beneath the coverings of religion, position or tradition. He requires that you worship Him in spirit and in truth. Remember, the gifts were not acceptable in themselves. Aaron bore the guilt associated, and holiness remained upon his forehead.
There will no longer be any curse; and the throne of God and of the Lamb will be in it, and His bond-servants will serve Him;4they will see His face, and His name will be on their foreheads. 5And there will no longer be any night; and they will not have need of the light of a lamp nor the light of the sun, because the Lord God will illumine them; and they will reign forever and ever. Revelation 22:3-5
"If you abide in Me, and My words abide in you, ask whatever you wish, and it will be done for you. 8"My Father is glorified by this, that you bear much fruit, and so prove to be My disciples. 9"Just as the Father has loved Me, I have also loved you; abide in My love.…John 15:7-9
"You blind guides, who strain out a gnat and swallow a camel! 25"Woe to you, scribes and Pharisees, hypocrites! For you clean the outside of the cup and of the dish, but inside they are full of robbery and self-indulgence. 26"You blind Pharisee, first clean the inside of the cup and of the dish, so that the outside of it may become clean also.…Matthew 23:24-26