I heard, once upon a time, some hymns from the Samaritans. By accident, I heard Psalm 114 <<
was listening around this time of year, long ago, on the radio, and someone commented that the ancient Latin Rite hymn , "Veni, Veni, Emmanuel" contained Jewish elements in the tune employed: <<
http://www.hymnary.org/tune/veni_emmanuel_chant>>. The essential movement of the Psalm 114, as I present it here, is recognizably related to the Veni Veni chant. Where there is smoke, possibly some warm coals remain. The first Apostles were Jews, and before the political distress of Israel, such as revolts and oppression, and diaspora, and under the leadership of Apostle James the Great, it is natural that much Jewish Liturgy was utilized--and why not? Christianity is not some foreign sect like Taoism, it retains vast strata of Jewish material, which is reformed by each of the great branches such as Eastern Orthodox Greek Catholic, Latin Roman Catholic, Luther et al Protestants, etc. So they all read the Old Testament, the Eastern Orthodox retain the Jewish Septuagint, and read the Greek New Testament which is intertextual with the Septuagint. Jerome's Vulgate is based on a deeply learned Jerome , who delved into the Septuagint and the Old Latin Translation. It may be that a lot osmosed through from the Jews.