Concordancia Strong's

ὅστις, ἥτις, ὅ τι (also written ὅ, τι and ὅτι; see LS, see word; WH, §411; Tdf., Pr., 111), in NT scarcely ever except in nom. (M, Pr., 91), the only instance of the oblique cases being found in ἕως ὅτου (see: ἕως), relative of indef. reference (related to simple ὅς as Lat. quisquis to qui),
whoever, anyone who;
__(a) of an indef. person or thing: in general statements, Mat.5:39, 41 13:12, and freq., Luk.14:27, Gal.5:4, al.; in relative sentences, Mat.7:26, Luk.15:7, Php.3:7, al.; πᾶς, with indic., Mat.7:24 10:32; ὅ ἄν (ἐάν), with subjc., Mat.12:50 13:12, Jhn.14:13, 1Co.16:2, Gal.5:10, al.;
__(b) of a definite person or thing, indicating quality, "either generic, which, as other like things, or essential, which by its very nature" (Hort on 1Pe.2:11), who is such as: Mat.2:6 7:26, Luk.2:10 7:37, Jhn.8:53, Act.7:53, Rom.6:2, 1Co.3:17, Gal.4:24, Eph.1:23, al.;
__(with) where the relative sentence expresses a reason, consequence, etc. (M, Pr., 92), seeing that he (it, they), and he (it, they): Luk.8:3 10:42, Act.10:47 11:28, Php.4:3, al.;
__(d) as in Ionic and late Greek (Bl., §50, 1; M, Pr., l.with), differing but little from ὅς: Luk.2:4 9:30, Act.17:10, Rev.12:13.
(AS)