5:9 being made perfect. This does not mean that Jesus finally became sinless, since He was always without sin (4:15), but that He finished the course of suffering that was set before Him, including the sacrificial death. Having done this, He was “made perfect,” or completely qualified to serve as the uniquely effective High Priest. The language here may allude to the concept of priestly consecration.

eternal salvation. Jesus lives forever to intercede as our High Priest (7:24, 25).