Scythia refers to the Scythian region north of Israel. Paul mentioned the people living there in his letter to the Colossians, and it is believed that at the time, these people were generally regarded as barbarians.
Col 3:11Here there is no Gentile or Jew, circumcised or uncircumcised, barbarian, Scythian, slave or free, but Christ is all, and is in all.