God told Abraham, "'I will surely bless you and give you many descendants'" (Heb 6:13). This was God's oath so that we would "inherit what has been promised" (:12). It was "an oath through the One" (7:21) who spoke to Jesus. God wanted to make his purpose very clear to the heirs" (:17). Therefore Jesus "became the source of eternal salvation for all who obey Him" (5:9). The author of Hebrews tells them that he is "confident of better things that accompany salvation" (6:9). Jesus accomplished this "when He offered up Himself" (7:27) and "has become the guarantee of a better covenant" (:22). Accordingly "the Lord has sworn [by an oath, saying] . . . 'Thou art a priest forever according to the order of Melchizedek'" (Ps 110:4). "The word of the oath, which came after the Law, appoints a Son, made perfect forever" (Heb 7:28).
The author of Hebrews was concerned about those "who are ignorant and going astray" (Heb 5:2) and those who were "slow to learn" (:11). He wanted to encourage the recipients of his letter. He cites that "God wanted to make the unchanging nature of His purpose very clear" (6:17) so that they "may be greatly encouraged" (:18). "He is able to save forever those who draw near to God through Him, since He always lives to make intercession for them" (7:25). The author acknowledges they have "fled to take hold of the hope offered to us" (6:18). There is a "better hope, through which we draw near to God" (:19). "We have this hope as an anchor for the soul, firm and secure" (:19). Therefore "in order to make your hope sure" (:11) "we want each of you to show this same diligence to the very end" (:11). Also, "imitate those who through faith and patience inherit what has been promised" (:12).
"If that first covenant had been faultless, there would have been no occasion for the second" (Heb 8:7). It would be "'not like the covenant which I made with their fathers . . . which they broke, although I was a husband to them'" (Jer 31:32). "'I will make a new covenant with the house of Israel'" (:31). "'I will put My law within them, and on their heart I will write it; and I will be their God, and they shall be My people'" (:33). There is the "setting aside of a former commandment because of its weakness" (Heb 7:18). It is by way of "another priest" (:11) "according to the power of an indestructible life" (:16). It brings in "a change of law also" (:12). "He has obtained a more excellent ministry, by as much as He is also the mediator of a better covenant, which has been enacted on better promises" (8:6). He is a "high priest" (:1) "exalted above the heavens" (7:26) who is a "minister in the sanctuary in the true tabernacle, which the Lord pitched, not man" (8:2). "He abides forever [and] holds His priesthood permanently" (7:24). "'Has He said, and will not do it? Or has He spoken, and will He not make it good?'" (Nu 23:19).