Outside of the four gospels, the book of Hebrews speaks more about who Jesus is than any other book in the Bible.
I recently studied through Hebrews and compiled this list of scriptures which describe Jesus:
Enjoy!
1. God has appointed Jesus heir of
all things (Hebrews 1:2)
2. God has made
the universe through Jesus (Hebrews 1:2)
3. Jesus is the
radiance of God's glory and the exact expression of God's nature (Hebrews
1:3)
4. Jesus sat
down at the right hand of the Father (Hebrews 1:3; 10:12; 12:2)
5. Jesus is
higher than all the angels (Hebrews 1:4)
6. All of the
angels must worship Jesus (Hebrews 1:6)
7. Jesus
destroyed the Devil by dying on the cross (Hebrews 2:14)
8. Jesus made a
propitiation for the sins of all people (Hebrews 2:17)
9. Jesus was
tested and suffered and is able to help those who are tested (Hebrews
2:18)
10. Jesus is
considered worthy of more glory than Moses (Hebrews 3:3)
11. God's Son
(Hebrews 5:8)
12. He is the
source of eternal salvation for all who obey Him (Hebrews 5:9)
13. Jesus was
declared by God a high priest in the order of Melchizedek (Hebrews 5:10)
14. Jesus
intercedes with the Father in Heaven for all believers (Hebrews 7:25)
15. Jesus is a
mediator of a better covenant (Hebrews 8:6; 9:15; 12:24)
16. Jesus has
obtained eternal redemption through His blood (Hebrews 9:12)
17. Jesus
offered Himself without blemish to God (Hebrews 9:14)
18. Jesus
appeared in the presence of God for us so we wouldn't have to suffer for
our sins (Hebrews 9:24)
19. Jesus
removed our sins by sacrificing Himself (Hebrews 9:26)
20. Jesus will
appear a second time to bring salvation to those who are watching for Him
(Hebrews 9:28)
21. We have been
sanctified through the offering of the body of Jesus Christ once and for
all (Hebrews 10:10)
22. Jesus
enemies will become His footstool (Hebrews 10:13)
23. Jesus has
perfected those who sanctified by His one offering (Hebrews 10:14)
24. Jesus has
made it possible to enter the sanctuary and presence of God through His
blood (Hebrews 10:19-21)
25. Jesus is the
same yesterday, today, and forever (Hebrews 13:8)
26. Jesus is the
Great Shepherd of the sheep and offers the blood of the everlasting
covenant (Hebrews 13:20)