Hebrews 8:1-2 Now of the things which we have spoken this is the sum: We have such an high priest, who is set on the right hand of the throne of the Majesty in the heavens; A minister of the sanctuary, and of the true tabernacle, which the Lord pitched, and not man. 

‘Sum’ [Greek: kephalaion] means the  main point. Jesus Christ is the main point of the book Hebrews.

There are seven facts about Christ in Hebrews: Our High priest (3:1; 6:20; 7:11-28); He is exalted at God’s right hand (8:1; 1:3; 12:2; Rom. 8:34; Eph. 1:20); Minister of realities of which the law was a shadow (8:2-6; 9:22-28; 10:1-12); He is an heavenly Priest (8:1-5; 9:23-24); He is the mediator of the new covenant (8:6; 9:15; Matt. 26:28); He became the only and true sacrifice (8:3; 9:11-28; 10:1-18; 1Pet. 2:24); He is the source of all blessings: (1) Mercy (8:12); (2) Remission of sins (8:12; 10:1-18); (3) Good things to come (9:11; 10:1); (4) Eternal redemption (9:12-15); (5) Purged conscience (9:14); (6) Eternal inheritance (9:15); (7) Representation (9:24); (8) Victory over man’s enemies (10:13); (9) Sanctification (10:10); (10) Perfection (10:14); (11) Forgetting of sins (10:17-18); (12) Access to God (10:19).

‘Minister’ [Greek: leitourgos] public servant or officer. Christ is the public servant who carries on the business of the whole human race with God. All have common rights in His work and service. He is the minister of the heavenly things pertaining to man’s redemption and destiny (8:2-6; 9:11-15, 23-24).

‘Sanctuary’ [Greek: hagion] holies, referring to the holy of holies of the heavenly temple or tabernacle (8:2; 9:3, 8; 10:19). Used 10 times in Hebrews (8:2; 9:2, 3, 8, 12, 24, 25; 10:19; 13:11).

‘Tabernacle’ [Greek: skene] Translated “tabernacle” 19 times and “habitation” once (Luke 16:9).

There are seven kinds of tabernacles: Temporary dwellings (Matt. 17:4; Mark 9:5); the tabernacle of Moloch (Acts 7:43-44); the kingdom of David (Acts15:16); the Heavenly sanctuary (8:2; 9:11); the Mosaic tabernacle (8:5; 9:2, 6, 8, 21; 13:10); tents of dwelling (11:9); the Holy City (Rev. 13:6; 21:2-23).

The heavenly tabernacle is called the temple of God in Isaiah 6:1 and Revelations 3:12; 7:15; 11:19; 14:15, 17; 15:5-8; 16:1, 17.