Resisted (antikatestēte). Second aorist active indicative (intransitive) of the double compound antikathistēmi, old verb to stand in opposition against in line of battle, intransitively to stand face to face (anti) against (kata), here only in the N.T.
Unto blood (mechris haimatos). “Up to blood.” As was true of Jesus and many of the other heroes of faith in chapter Heb 11.
Striving (antagōnizomenoi). Present middle participle of antagōnizomai, old verb with the same figure in antikatestēte.
Against sin (pros hamartian). Face to face with sin as in Heb 12:1.