Heb 6:7-8 Indeed, the ground (in this allegory, the "ground" represents the high priesthood) that has drunk the rain that has often fallen on it, and that produces vegetation useful to those it is cultivated for, receives a blessing from YHVH. But if the ground that has drunk the rain produces thorns and thistles (an inference to the Aaronic high priesthood of that day), the ground is worthless and about to be cursed, and will be burned in the end (i.e. the end of that Temple period).
Heb 6:9 Even though we are speaking this way, fellow priests, in your case we are confident of the better things connected with salvation (i.e. connected with the preservation of the Levitical priesthood, Eze 40:46).
Heb 6:10 For YHVH is not unrighteous to forget your work and labor of love, which ye have showed toward the place where He put his Name (Deu 12:5), in that ye have performed and continue to perform your Temple service to the saints (Psa 148:14).
Heb 6:11-12 Now we want each of you to demonstrate the same diligence for the final realization of your hope in a restored Melchisedecian high priesthood, that ye be not ambivalent, but imitators of those, like Abraham, who inherit promises through faith and perseverance.
Heb 6:13-14 For example, when YHVH made a promise to Abraham, since He had no one greater to swear by, He swore by Himself: “I will most certainly bless you, and I will greatly multiply you”.
Heb 6:15 And so, after waiting patiently through faith and perseverance, Abraham obtained the Promise (Isaac, Rom 9:7-9; Jos 24:3).
Heb 6:16-20 For men swear by something greater than themselves, and for them a confirming oath ends every dispute. Because YHVH wanted to show His unchangeable purpose even more clearly to the Heirs of the Promise, He guaranteed it with an oath, so that through two unchangeable things (His purpose and His oath), in which it is impossible for Elohim to lie, we who have fled for a City of Refuge (Num 35:25) might have strong encouragement to seize the Hope set before us (i.e. the death of the Aaronic high priesthood, Num 35:25b). We have this Hope (like a sure and firm anchor of the soul) Yeshua, who has entered within the veil on the priests’ behalf as a forerunner, because he has become a high priest forever in the Order of the Melchisedec.