16. “Carnal commandment,” according to which the sons of Aaron, by their descent from him, are made priests, one succeeding the other. “According to the power of an indissoluble life,” i.e., by the divine power, which grants him immortal life, excluding all grounds for succession. In these words, is contained an allusion to Melchisedech’s apparent perpetuity (verse 8).
Hebrews 7:16