Already, with his mother's help, Jesus had mastered the Galilean dialect of the Aramaic tongue; and now his father began teaching him Greek. Mary spoke little Greek, but Joseph was a fluent speaker of both Aramaic and Greek. The textbook for the study of the Greek language was the copy of the Hebrew scriptures-a complete version of the law and the prophets, including the Psalms -which had been presented to them on leaving Egypt. ~ The Urantia Book, 123:3.1