ガラテヤ書しょMeanings1nounEpistle to the Galatiansrare termRare term; the more common name is ガラテヤ人への手紙. Used in biblical contexts.See also: ガラテヤ人への手紙ガラテヤ書しょは新しん約やく聖せい書しょの一いっ書しょです。The Epistle to the Galatians is a book of the New Testament.