“We ask our readers carefully to read the seventh chapter of Hebrews, and especially to note the following verses:
“If therefore perfection were by the Levitical priesthood, (for under it the people received the law), what further need was there that another priest (Jesus the Christ) should rise after the order of Melchizedek, and not be called after the order of Aaron. … For it is evident that our Lord sprang out of Judah; of which tribe Moses spake nothing concerning priesthood. And it is yet far more evident: for that after the similitude of Melchizedek 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 Melchizedek . … And inasmuch as not without an oath 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 Melchizedek). By so much was Jesus made a surety of a better testament.”
There is much prejudice on the part of the people in regard to taking the oath of an order that requires secrecy, or in other words, of an order that requires wisdom on the part of its members as to what is to be taught to the public and what is to be kept for those that are worthy; but here the statement is emphatic that, “not without an oath he was made a priest.”
If our Lord Jesus the Christ, came not after the order of Aaron, as Paul says, but came after the order of Melchizedek, then it follows that the mission of Christ is to lead his followers into the membership of that wondrous Brotherhood, to show them the way through the veil into the Holiest of all, into the great mysteries of that Eternal Brotherhood – a Brotherhood which, the writer said, had “neither beginning of days nor end of life.”
Not that this priest Melchizedek was without beginning of days or end of life, for that would be contrary to all that is known of organized or individualized existence. On the other hand, if worlds have circled in the heavens from all eternity, if evolution has always been the law governing all worlds, and if it has been a law from all eternity that there are lines of demarcation between spheres of existence, so that none can pass from that without, to that within, from the lower to the higher, until by attainment they have earned the right to do so – until they have grown into it – which is one of the most absolute laws of the universe, then it follows that this order of Melchizedek is the order of all redeemed souls from the beginning of time, and will so continue, throughout eternity.”
Hiram Butler
The Mark Of God: Understanding Your "I AM Presence" 