The encyclical, "Summi Maeroris," was given at St. Peter's in Rome on July 19, 1950, by Pope Pius XII in the twelfth year of his Pontificate.
But Thomas (who was called the Twin), one of the twelve, was not with them when Jesus came. So the other disciples told him, “We have seen the Lord.” But he said to them, “Unless I see the mark of the nails in his hands, and put my finger in the mark of the nails and my hand in his side, I will not believe.” A week later his disciples were again in the house, and Thomas was with them. Although the doors were shut, Jesus came and stood among them and said, “Peace be with you.” Then he said to Thomas, “Put your finger here and see my hands. Reach out your hand and put it in my side. Do not doubt but believe.” Thomas answered him, “My Lord and my God!” Jesus said to him, “Have you believed because you have seen me? Blessed are those who have not seen and yet have come to believe”
(John 20:24-29, NRSV)
"Luke’s consistent substitution of Greek names for the Aramaic or Hebrew names occurring in his sources (e.g., Lk 23:33; Mk 15:22; Lk 18:41; Mk 10:51), his omission from the gospel of specifically Jewish Christian concerns found in his sources (e.g., Mk 7:1–23), his interest in Gentile Christians (Lk 2:30–32; 3:6, 38; 4:16–30; 13:28–30; 14:15–24; 17:11–19; 24:47–48), and his incomplete knowledge of Palestinian geography, customs, and practices are among the characteristics of this gospel that suggest that Luke was a non-Palestinian writing to a non-Palestinian audience that was largely made up of Gentile Christians."