Bede, on Acts 1:16

“Men, brethren, the scripture must needs be fulfilled, which the Holy Ghost spoke before by the mouth of David concerning Judas, who was the leader of them that apprehended Jesus:”

“Brethren, it is necessary to fulfill the Scripture which the Holy Spirit foretold, etc. Peter the Apostle feared to remain in the number eleven. For all sin is 'eleven,' because through perverse actions, it transgresses the precepts of the Decalogue. Hence, because none of our justice is innocent by itself, the tabernacle that contained the Ark of the Lord was overlaid inside with eleven goat-hair curtains. And he restored the number of apostles to twelve, so that by the two parts of seven (for three times four is a fine sum), they would maintain the grace they preached and with the number, and those who were to preach the faith of the Holy Trinity to the fourfold world, as the Lord says: "Go, therefore, and make disciples of all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Spirit" (Matthew 28:19), they would also strengthen the perfection of work by the sacrament of the number. According to the higher understanding, the loss that the Church suffers from false brethren persists to the greatest extent unaddressed. But when at the end of the world, the people of the Jews who crucified the Lord are believed to be reconciled to the Church, like on the approaching fiftieth day, the number of the apostles is restored.”

Imported from an open dataset — not yet checked against the printed edition.