28. (a) By the use of Psalms, what argument does Paul develop in Hebrews chapters 1 to 3? (b) How does Psalm 110:4 provide a basis for Paul’s discussion of the Melchizedekian priesthood?

²⁸ Look, now, at the letter to the Hebrews. In the first two chapters, we find a number of quotations from the Psalms respecting the superiority of Jesus, as God’s heavenly enthroned Son, over the angels. Paul shows from Psalm 22:22 and other references that Jesus has a congregation of “brothers,” part of Abraham’s seed and “partakers of the heavenly calling.” (Heb. 2:10-13, 16; 3:1) Then, commencing at Hebrews 6:20 and continuing through Heb chapter 7, the apostle enlarges on the additional office that Jesus occupies as “high priest according to the manner of Melchizedek forever.” This refers to God’s oath-bound promise at Psalm 110:4, to which Paul makes reference time and again in proving the superiority of Jesus’ priesthood over that of Aaron. Paul explains that by Jehovah’s oath Jesus Christ is a priest, not on earth, but in heaven and “he remains a priest perpetually”​—the benefits of his priestly service will be eternal.​—Heb. 7:3, 15-17, 23-28.

29. What outstanding example of devotion should we heed, as stated in the Psalms and explained at Hebrews 10:5-10?

²⁹ Further, at Hebrews 10:5-10, we are told of Jesus’ fine appreciation for the sacrificial course that was God’s will for him and of his determination to carry out that will. This is based on David’s words at Psalm 40:6-8. This exemplary spirit of devotion is of the greatest benefit for all of us to consider and to copy so as to win God’s approval.​—See also Psalm 116:14-19.

Ps. 45:6, 7​—Heb. 1:8, 9.

Ps. 95:7-11​—Heb. 3:7, 8; 4:7.