Making Sense of Hebrews

Hebrews contains fundamental topics not found elsewhere in the Bible. It is the only book in the Bible where Jesus Christ is called a High Priest. Only in Hebrews is the connection of Melchizedek with Christ Jesus found. Only Hebrews cited and detailed the great promise of Jer 31:31. Only Hebrews linked the mediator of the new covenant with Christ Jesus. Hebrews is one of 66 books of Bible and as such is the Word of God. But how much of it applies to members of the Body of Christ?