It is not possible, as it is with evolutionary beings, for these Sons to progress from one group to another. When subjected to the Melchizedek training, when once tested and classified, they serve continuously in the rank assigned. Neither do these Sons engage in reproduction; their number in the universe is stationary.
Close in meaning, found by a language model. A match does not mean the teachings are the same.
For this Melchizedek, king of Salem, priest of God Most High, who met Abraham returning from the slaughter of the kings and blessed him, to whom also Abraham divided a tenth part of all (being first, by interpretation, “king of righteousness”, and then also “king of Salem”, which means “king of peace”, without father, without mother, without genealogy, having neither beginning of days nor end of life, but made like the Son of God), remains a priest continually.
Now if perfection was through the Levitical priesthood (for under it the people have received the law), what further need was there for another priest to arise after the order of Melchizedek, and not be called after the order of Aaron? For the priesthood being changed, there is of necessity a change made also in the law. For he of whom these things are said belongs to another tribe, from which no one has officiated at the altar. For it is evident that our Lord has sprung out of Judah, about which tribe Moses spoke nothing concerning priesthood. This is yet more abundantly evident, if after the likeness of Melchizedek there arises another priest, who has been made, not after the law of a fleshly commandment, but after the power of an endless life; for it is testified, “You are a priest forever, according to the order of Melchizedek.”
“Now this is the order of those who have kept the ways of the Most High, when they will be separated from their mortal body. In the time that they lived in it, they painfully served the Most High, and were in jeopardy every hour, that they might keep the law of the lawgiver perfectly. Therefore this is the teaching concerning them: First of all they will see with great joy the glory of him who takes them up, for they will have rest in seven orders. The first order, because they have labored with great effort to overcome the evil thought which was fashioned together with them, that it might not lead them astray from life into death. The second order, because they see the perplexity in which the souls of the ungodly wander, and the punishment that awaits them. The third order, they see the testimony which he who fashioned them gives concerning them, that while they lived they kept the law which was given them in trust. The fourth order, they understand the rest which, being gathered in their chambers, they now enjoy with great quietness, guarded by angels, and the glory that awaits them in the last days. The fifth order, they rejoice that they have now escaped from that which is corruptible, and that they will inherit that which is to come, while they see in addition the difficulty and the pain from which they have been delivered, and the spacious liberty which they will receive with joy and immortality. The sixth order, when it is shown to them how their face will shine like the sun, and how they will be made like the light of the stars, being incorruptible from then on. The seventh order, which is greater than all the previously mentioned orders, because they will rejoice with confidence, and because they will be bold without confusion, and will be glad without fear, for they hurry to see the face of him whom in their lifetime they served, and from whom they will receive their reward in glory. This is the order of the souls of the just, as from henceforth is announced to them. Previously mentioned are the ways of torture which those who would not give heed will suffer from after this.”