Rev 1:12 "And I turned to see the voice that spake with me. And being turned, I saw seven golden candlesticks;"

Rev 1:13 "And in the midst of the seven candlesticks one like unto the Son of man, clothed with a garment down to the foot, and girt about the paps with a golden girdle."

We see in verse thirteen the clothing of the High Priest.

I believe this is showing us that Jesus is now entered into the Holy Place and begins his work in the Sanctuary in Heaven starting shortly after going from the outer court (earth) into the heavenly sanctuary.

And thou shalt make holy garments for Aaron thy brother for glory and for beauty. And thou shalt speak unto all that are wise hearted, whom I have filled with the spirit of wisdom, that they may make Aaron's garments to consecrate him, that he may minister unto me in the priest's office. And these are the garments which they shall make; a breastplate, and an ephod, and a robe, and a broidered coat, a mitre, and a girdle: and they shall make holy garments for Aaron thy brother, and his sons, that he may minister unto me in the priest's office. (Ex 28:2-4)

And the curious girdle of the ephod, which is upon it, shall be of the same, according to the work thereof; even of gold, of blue, and purple, and scarlet, and fine twined linen. (Ex 28:8)

Of Aaron, the high priest of Israel, it is written, He "shall bear the names of the children of Israel in the breastplate of judgment upon his heart, when he goeth in unto the holy place, for a memorial before the Lord continually." [Exodus 28:29.] What a beautiful and expressive figure this is of the unchanging love of Christ for His church! Our great High Priest, of whom Aaron was a type, bears His people upon His heart. And should not His earthly ministers share His love and sympathy and solicitude? {GW 34.2}

Seeing then that we have a great high priest, that is passed into the heavens, Jesus the Son of God, let us hold fast our profession." (Heb 4:14)

Now of the things which we have spoken this is the sum: We have such an high priest, who is set on the right hand of the throne of the Majesty in the heavens; A minister of the sanctuary, and of the true tabernacle, which the Lord pitched, and not man. (Heb 8:1-2)

Behold the man whose name is The BRANCH; and he shall grow up out of his place, and he shall build the temple of the LORD: (Zech 6:12)

Then came Jesus forth, wearing the crown of thorns, and the purple robe. And Pilate saith unto them, Behold the man! (John 19:5)

After Jesus left earth symbolized as the outer court he began his ministry as High Priest in the Sanctuary in Heaven, he then begins his ministry in the Holy Place (Not the Most Holy).

But Christ being come an high priest of good things to come, by a greater and more perfect tabernacle, not made with hands, that is to say, not of this building; Neither by the blood of goats and calves, but by his own blood he entered in once into the holy place, having obtained eternal redemption for us. (Hebrews 9:11-12)

Some would like to argue the wording used here in Hebrews, but the writer of Hebrews made it clear as you can see here.