Hebrews 10:2

Conscience of sin] i.e. consciousness of sin, sense of guilt: cp. Hebrews 9:9.

3. The continual repetition of the sacrifices served only to remind the worshippers of the continuity of the need of cleansing.

5. The quotation is from Psalms 40:6, according to the LXX, which reads, 'a body thou hast prepared for me,' where the Hebrew has, 'mine ears thou hast opened,' meaning that God has opened the ears of His servant to hear and obey His will. The LXX may be due to an early corruption of the text, or it may be a free reproduction of the sense. As used here the words refer to the Incarnation, and are taken to indicate the superiority of Christ's sacrifice over the animal sacrifices of the Law in respect that His offering was voluntary and moral. It was a sacrifice of obedience (Hebrews 10:7), the voluntary and glad (cp. Hebrews 12:2) surrender of His own life to God.