Christs death is limited to them He obtained Eternal Redemption for, since what He obtains for us He lives to ensure the application of it Heb 9:12
neither by the blood of goats and calves, but by his own blood he entered in once into the holy place, having obtained eternal redemption for us.
Now by His own Blood signifies His Death, which by it He obtained eternal redemption for certain ones. Now who are they?
Recall back in Chapter 1 vs 14
Heb 1:14
14 Are they not all ministering spirits, sent forth to minister for them who shall be heirs of salvation?
Its the heirs. Notice again Heb 6:17-18
. 17 Wherein God, willing more abundantly to shew unto the heirs of promise the immutability of his counsel, confirmed it by an oath: 18 that by two immutable things, in which it was impossible for God to lie, we might have a strong consolation, who have fled for refuge to lay hold upon the hope set before us
And the heirs of promise dont just consist of some jews, but some Gentiles, the Church the Body of Christ Gal 3:29
And if ye be Christ’s, then are ye Abraham’s seed, and heirs according to the promise. 17