To chime in, ecclesiastical differences aside, I want to address the Isaiah aspect first.
Isaiah 6:5-8
5Then said I, Woe
is me! for I am undone; because I
am a man of unclean lips, and I dwell in the midst of a people of unclean lips: for mine eyes have seen the King, the LORD of hosts.
6Then flew one of the seraphims unto me, having a live coal in his hand,
which he had taken with the tongs from off the altar:
7And he laid
it upon my mouth, and said, Lo, this hath touched thy lips; and thine iniquity is taken away, and thy sin purged.
8Also I heard the voice of the Lord, saying, Whom shall I send, and who will go for us? Then said I, Here
am I; send me.
In this passage, you see the blood of Jesus Christ symbolized by the live coal which purges Isaiah's sins.
In the past, Israel had no way to access the holy of holies as was customary, only the priest could, but only had access to the courtyard, the outer area. Jesus made it so that we could approach the holy of holies because as you see he is the high priest.
In Zechariah 3, you see how Joshua is given the diadem of high priest. This is an allusion to Christ. Same name to be technical...
1And he shewed me Joshua the high priest standing before the angel of the LORD, and Satan standing at his right hand to resist him.
2And the LORD said unto Satan, The LORD rebuke thee, O Satan; even the LORD that hath chosen Jerusalem rebuke thee:
is not this a brand plucked out of the fire?
3Now Joshua was clothed with filthy garments, and stood before the angel.
4And he answered and spake unto those that stood before him, saying, Take away the filthy garments from him. And unto him he said, Behold, I have caused thine iniquity to pass from thee, and I will clothe thee with change of raiment.
5And I said, Let them set a fair mitre upon his head. So they set a fair mitre upon his head, and clothed him with garments. And the angel of the LORD stood by.
6And the angel of the LORD protested unto Joshua, saying,
7Thus saith the LORD of hosts; If thou wilt walk in my ways, and if thou wilt keep my charge, then thou shalt also judge my house, and shalt also keep my courts, and I will give thee places to walk among these that stand by.
8Hear now, O Joshua the high priest, thou, and thy fellows that sit before thee: for they
are men wondered at: for, behold, I will bring forth my servant the BRANCH.
9For behold the stone that I have laid before Joshua; upon one stone
shall be seven eyes: behold, I will engrave the graving thereof, saith the LORD of hosts, and I will remove the iniquity of that land in one day.
10In that day, saith the LORD of hosts, shall ye call every man his neighbour under the vine and under the fig tree.
My point being is that it seems to reiterate the formal efforts, laws, traditions, and rules that certainly do not bind us. By this I mean Jesus fulfilled all the relevant traditions and laws to unbind us and free us. For HE is the high priest.
One thing I notice in my own congregations that I've attended is that some pray and bless the Word of God so that the words will be fruitful unto the hearers. So that God's Word will not return void. Keep in mind that God used the donkey to speak to Balaam, spoke to Moses out of a burning bush. The power comes from the Word not the speaker. For the speaker may or not be grounded in faith, or things similarly. But the word of God is steadfast, immovable.
That being said, whatever the spirit moves you to accept as being righteous, let it be so. If it be not righteous to you according to the word of God then let it be known. All I know is that the word of God being preached does not require a blessing from men, for its power flows from God. Keep that in mind the next time you hear John 3:16 come out of a child's mouth that has just come to know the Lord.
I have other matters when it comes to hierarchy, ecclesiastical things but this is not the proper place to discuss as the thread is, of course denomination specific. However I am a Christian. There are no denominations in heaven. We are part of the same body of Christ. We have the same Holy Spirit living inside of us. If you wish to converse about the other matters, feel free to message or prompt to start a thread, I'd be happy to chat.
Love in Christ.