Hebrews 9:15

For this cause. That is, because of the efficacy of Christ’s blood to cleanse the conscience.

Mediator of the new testament. Or, “mediator of the new covenant.” The author has already introduced Christ as “the mediator of a better covenant” (see on ch. 8:6). For the new covenant see on ch. 8:8-12. For “testament” see on ch. 9:16.

By means of death. Literally, “death having occurred.” The reference is to the death on the cross (cf. on ch. 2:14).

Redemption. Greek upolutrosis (see on Romans 3:24).

Under the first testament. Or, “under the first covenant” (see on chs. 7:22; 9:16). Under the sacrificial system forgiveness for sin was granted on the basis of the blood of the Lamb of God that was to be shed. The blood of animals in and of itself was powerless to remit sins. It was merely symbolic of the death of Christ for the sins of the world. If Jesus had not given His life, the forgiveness offered under the first covenant would never have been validated.

Called. See on Romans 8:28, 30.

Might receive. The receiving of the inheritance was dependent on the sacrifice of Christ. If Christ had not offered up His life, then those under the old covenant would have hoped in vain.

Inheritance. See on Galatians 3:18.