The 1st - century jewish historian josephus and the christian historian eusebius ( who wrote in the 4th century but quoted much earlier sources that are now lost ) refer to james the just as jesus ' brother 犹太历史学家约瑟夫和基督教历史学家优西比乌(作品写于公元四世纪,但引用了大量更早期的资料,但现在丢失)提到公义的雅各是耶稣的兄弟。