St. Luke's relations with St. Paul are further illustrated from Acts. The literary resemblances between this Gospel and Acts are so numerous and so subtle that the tradition which ascribes both books to one author cannot reasonably be controverted. The passages in Acts which contain the word "we" show that the writer of Acts accompanied St. Paul from Troas to Philippi in A.D. 50, when the apostle made his first missionary journey in Europe (Acts xvi. 10-17). The apostle left him at Philippi. About six years afterwards St. Paul was again at Philippi, and there met St. Luke, who travelled with him to Jerusalem (Acts xx. 5-xxi. 18); he also was with the apostle when he made the voyage to Rome, and was shipwrecked with him at Malta. A writer of the 3rd century (quoted in Wordsworth's _Vulgate_, p. 269) tells us that St. Luke had neither wife nor children, and died in Bithynia at the age of seventy-four. A writer of the 6th century asserts that St. Luke was a painter, and attributes to him a certain picture of the Blessed Virgin. Another such picture is preserved in the great church of S. Maria Maggiore at Rome. The legend finds no support in early Christian writers. At the same time, it bears witness to the fact that this Gospel contains the elements of beauty in especial richness. It is the work of St. Luke that inspired Fra Angelico's pictures of the Annunciation, and the English hymn "Abide with me." Although St. Irenaeus is the first writer who names St. Luke as the author of the third Gospel, the Gospel is quoted by earlier writers. Special mention must be made of (1) _Justin Martyr_. He records several facts only found in this Gospel, _e.g._ Elisabeth as the mother of John the Baptist, the census {66} under Quirinius, and the cry, "Father, into Thy hands I commend My spirit." (2) _Celsus_, the pagan philosopher, who opposed Christianity. He refers to the genealogy which narrates that Jesus was descended from the first man. (3) The _Letter of the Churches of Lyons and Vienne_, written in A.D. 177. (4) _Marcion_. He endeavoured to found a system of theology which he pretended to be in accordance with the teaching of St. Paul. He rejected the Old Testament as the work of an evil god, and asserted that St. Paul was the only apostle who was free from the taint of Judaism. The only Gospel which he kept was that according to St. Luke, which he retained as agreeing with the teaching of St. Paul. The contents of Marcion's Gospel can be largely discovered in Tertullian. The differences which existed between Marcion's Gospel and our Luke can be easily accounted for. Here, as in St. Paul's Epistles, he simply altered the passages which did not agree with his own interpretation of St. Paul's doctrine. For instance, in Luke xiii. 28, instead of "Abraham, and Isaac, and Jacob," he put "the righteous." The account of our Lord's birth and infancy he omitted, because he did not believe