The orarion is a long ribbon placed by the deacon on his left shoulder, above the surplice, decorated with crosses and constantly held in his right hand during all sacred rites. In the primal Church, instead of the current narrow orarion, there was a long piece of cloth worn by the deacon on his shoulder during service, which he used on various occasions, namely; he used it to wipe the mouths of those partaking of the Holy Mysteries; they were given a sign by the reader or clergy when it was necessary to read or sing; through him, at the words of the catechumens, come out, he hurried the catechumens and the penitents to leave the church as quickly as possible, and so on. St. John Chrysostom gives the orarion such a meaning that it depicts the wings of Angels, because the deacon wearing it corresponds in rank to these disembodied spirits.
The epitrachelion is the same orarion, thrown over the priest's neck and connected only in front with buttons, as a sign that each priest was formerly a deacon himself, and now performs his duties in his absence; and also as a sign of the special outpouring of the grace of the Holy Spirit given to the priest for the performance of the sacraments. Due to this last meaning, a priest cannot perform any church service without an epitrachelion, just like a deacon without an orarion.
Belt - a wide ribbon worn over the cassock; he depicts; readiness, strength and unshakable firmness in the exercise of priestly service. The same thing is explained in the priest’s prayer when putting on this part of the vestment.
The gait is a rectangular oblong piece of fabric, hung on a ribbon over the shoulder, to the right thigh of the priest. It depicts the spiritual sword of the word of God, with which the shepherd must arm himself against the wicked and unbelievers; it is given as a distinction to priests, according to their dignity and participation in the Church government.
A club is a square piece of cloth, attached at one corner to the belt of a priest or bishop on the same side as the legguard, and has the same meaning as the latter. Its establishment, as the highest award in comparison with the previous one, was intended to further arouse in the shepherds zeal for faith and the salvation of human souls.
Felonion or Robe is an image of the outer clothing of the Savior and the Apostles, or the mantle in which the Savior was clothed from his scoffers; and therefore it has the appearance of sackcloth, without sleeves.
Sakkos is the outer bishop's robe, which in the spiritual sense has the same meaning as the priestly robe. This clothing (and with the same name) in ancient times was an accessory to the royal dignity, and kings clothed themselves in it as a sign of humility in times of repentance; but when the Christian faith became dominant, the pious Sovereigns, out of respect for the Church, provided it to the Greek Patriarchs; and from these latter, it has already passed on to the hierarchs of other Christian confessions.
Omophorion - there is a long wide ribbon with crosses on it, worn in a special manner with the help of buttons on the neck and the ramen of the Bishop. This part of the vestment constitutes a predominant sign of the priesthood and was adopted following the example of the Old Testament Church. The High Priest of Judah put on the Ephud or Paramennik, which had on itself the Word of Judgment, composed of 12 precious stones, from which on each was carved the name of the 12 sons of Israel, and in this vestment he received the power to be the intercessor and priest of the whole people. Likewise, the Newly Graced Bishop, having placed on himself an omophorion, decorated, instead of stones, with an incomparably most precious sign for all Christians, becomes a prayer book for them before God. According to the understanding of the Holy Fathers of the Church, the omophorion signifies the lost sheep in the person of the human race, and therefore, when vested in it, the Saint depicts Christ, who took on His Holy Neck the sins of all lost humanity and lifted them up in His person to God the Father, with the covenant of adoption.
This is confirmed by the very prayer pronounced when placing the omophorion on the Bishop: On the Ramo, Christ, you took your erring nature, ascended, and offered it to God and the Father!
Miter - the head decoration of the Bishop, also got its origins from Old Testament clothing. The Jewish high priest, when putting on the Ephud, placed a miter on his head, which had exactly the same outline as the miter, but only with a notch in the middle, which made it more like the moon. Imitating this, but not preserving the above form, the first Bishops of the Christian Church, like the High Priests of the New Testament, for example, James the brother of God and others, wore a high golden bandage, like a crown. In the spiritual sense, the miter depicts both the Savior’s crown of thorns and that handkerchief or Lord with which the wounded head of Christ was entwined during burial.