There are two variations in the scriptures of the same concept regarding the Melchizedek Priesthood. One in the New Testament and the other in 1832.
From the New Testament, Hebrews 7:12-21:
For the priesthood being changed, there is made of necessity a change also of the law. For he of whom these things are spoken pertaineth to another tribe, of which no man gave attendance at the altar. For it is evident that our Lord sprang out of Juda; of which tribe Moses spake nothing concerning priesthood. And it is yet far more evident: for that after the similitude of Melchisedec there ariseth another priest, Who is made, not after the law of a carnal commandment, but after the power of an endless life. For he testifieth, Thou art a priest for ever after the order of Melchisedec. For there is verily a disannulling of the commandment going before for the weakness and unprofitableness thereof. For the law was administered without an oath and made nothing perfect, but was only the bringing in of a better hope did; by the which we draw nigh unto God. And inasmuch as this high priest was not without an oath, by so much was Jesus made the surety of a better testament.
he was made priest: (For those priests were made without an oath; but this with an oath by him that said unto him, The Lord sware and will not repent, Thou art a priest for ever after the order of Melchisedec:)
(In addition to the emphasis of bold and underlines, I have shown the JST changes to this text in red lettering and cross-out.)
The reference in Hebrews to the Lord swearing the oath to confer this priesthood is a quote from Psalms 110:4: “The Lord hath sworn, and will not repent, Thou art a priest for ever after the order of Melchizedek.” It is part of a Messianic Psalm and describes Christ.
Then in 1832, D&C 84:33-40:
For whoso is faithful unto the obtaining these two priesthoods of which I have spoken, and the magnifying their calling, are sanctified by the Spirit unto the renewing of their bodies. They become the sons of Moses and of Aaron and the seed of Abraham, and the church and kingdom, and the elect of God. And also all they who receive this priesthood receive me, saith the Lord; For he that receiveth my servants receiveth me; And he that receiveth me receiveth my Father; And he that receiveth my Father receiveth my Father’s kingdom; therefore all that my Father hath shall be given unto him. And this is according to the oath and covenant which belongeth to the priesthood. Therefore, all those who receive the priesthood, receive this oath and covenant of my Father, which he cannot break, neither can it be moved.
In both cases the “oath” is God’s. God is the one who confirms upon the recipient this priesthood and makes him to be His priest. When God makes this oath it is after the recipient has been so thoroughly proven that God “will not repent” and remove the authority given to the recipient.
Those who receive it likewise “receive” Christ, because they know Him and have stood in His presence. After receiving Him, Christ then brings them to the Father and the Father likewise “receives” the recipient. The Father is the one who then swears to the recipient that “all He [the Father] has shall be given to the recipient” because this is God’s oath to those few mortals who ever receive this priesthood. They are on a course which will lead them to become like His Son and like Himself.
Some men imagine this happens when a young man gets approval by a local congregation and some quorum leader “confers” this priesthood. That is fanciful imagination. The reality is that this is a very rare event, happening infrequently in mankind’s temporal history. God has made provision to deal with the frequent absence of this authority among men by having some linger here, as John the Beloved has agreed to do.
Christ serves as the model for these recipients, and He is the one who best exemplifies the kind of man to whom God the Father would declare, “Thou art a priest for ever after the order of Melchizedek.”
Vanity is a poor substitute for redemption. As Joseph Smith put it, “How much more dignified and noble are the thoughts of God, than the vain imaginations of the human heart!” When men get a little authority, as they suppose (or in other words, as they imagine), they begin to abuse one another.
Those God trusts are like Moses, who “was very meek, above all the men which were upon the face of the earth.” (Num. 12:3.) This is why the 1832 revelation calls the recipients “the sons of Moses.” (D&C 84:34.)
When pretenders exercise control, dominion and compulsion over one another it discourages the hearts of those who seek for God. The poor example makes everyone wary of the idea of “authority” given by God. Remember the Great Example of the Great High Priest, Christ. He knelt and washed others’ feet. He did not seek out the chief seats. He was cast out and associated with the least, proclaiming that it was they who were favored by God. He was despised and rejected because He held no position, rank or authority in the social order of His day. He called the presiding authorities of His time hypocrites, whited sepulchers filled with death and decay.
Christ came to serve, not to rule and reign with violence and intimidation. HE is the model of what real authority looks like. Real authority elevates others. It kneels to serve. It has others’ best interests in mind to the point of sacrificing everything to serve and save others. It is impossible to imagine Christ escorting the self-important into God the Father’s presence to have him given authority. The stink of such a man’s death and decay would contaminate the halls of heaven.
It is almost always the case that non-scriptural, anti-Christ ideas are likely to be rejected–until it is the “doctrine” or “dogma” of an institution. Then, because of mankind’s insecurities, falsehoods get propped up beyond all criticism because of the influence the institution holds in this world. It is the worldliness of the lie that makes it so appealing, so reassuring. Lies enjoy success which are so very unlike the example of the itinerate preacher Jesus, who submitted to others, paid the temple priests, paid taxes to Caesar, was cast out of the synagogues– and who founded the religion now profaned by wealthy men saying, but not doing, as He commanded.