Rabanus Maurus
Catena Aurea · Matthäusevangelium 10
And when he had called unto him his twelve disciples, he gave them power against unclean spirits, to cast them out, and to heal all manner of sickness and all manner of disease. Now the names of the twelve apostles are these; The first, Simon, who is called Peter, and Andrew his brother; James the son of Zebedee, and John his brother; Philip, and Bartholomew; Thomas, and Matthew the Publican; James the son of Alphæus, and Lebbæus, whose surname was Thaddæus; Simon the Canaanite, and Judas Iscariot, who also betrayed him.
(cf. Tertull. cont. Marc. iv. 13.) This number is typified by many things in the Old Testament; by the twelve sons of Jacob, by the twelve princes of the children of Israel, by the twelve running springs in Helim, by the twelve stones in Aaron’s breastplate, by the twelve loaves of the shew-bread, by the twelve spies sent by Moses, by the twelve stones of which the altar was made, by the twelve stones taken out of Jordan, by the twelve oxen which bare the brazen sea. Also in the New Testament, by the twelve stars in the bride’s crown, by the twelve foundations of Jerusalem which John saw, and her twelve gates.