Here the writer repeats the truth established in Chapter 2 regarding the humanity of Jesus. His descent to earth, having been made “a little lower than the angels” (2:7), and suffering death, “perfected” Him. The Greek word here (teleio?) indicates completion or fulfillment. He accomplished everything God required of Him on earth. All was fulfilled in His sacrificial death. He became the “author” of salvation to those who obey. (Note the distinction between the lost and saved, as Christ has died for all, is whether or not they obey Jesus).
So, God exalted Him to the position of High Priest. It is noted elsewhere that Jesus, of the tribe of Judah, could not serve as priest under the Old Covenant. This position was relegated to the tribe of Levi. Under the New Covenant, Christ reigns as both King and High Priest. In this, His order is that of another King Priest of old, Melchizedek, the king of Salem, and a “priest of God Most High” (Genesis 14:18).
While the Hebrew writer later discusses this priesthood (cf. 7:1-10) this reference allowed him to rebuke his readers for their digression and ignorance. This takes place from Hebrew 5:12 – 6:8.
