'Eternal' in the Bible

and so, having been made perfect, He became to all who obey Him the source and giver of eternal salvation.

and once for all entered the Holy place, taking with Him not the blood of goats and calves, but His own blood, and thus procuring eternal redemption for us.

how much more certainly shall the blood of Christ, who strengthened by the eternal Spirit offered Himself to God, free from blemish, purify your consciences from lifeless works for you to serve the ever-living God?

And because of this He is the negotiator of a new Covenant, in order that, since a life has been given in atonement for the offences committed under the first Covenant, those who have been called may receive the eternal inheritance which has been promised to them.

Now may God who gives peace, and brought Jesus, our Lord, up again from among the dead--even Him who, by virtue of the blood of the eternal Covenant, is the great Shepherd of the sheep--