Cyril of Alexandria
Catena Aurea · Lukasevangelium 10
Lk 10, Verses 1–2English original
After these things the Lord appointed other seventy also, and sent them two and two before his face into every city and place, whither he himself would come. Therefore said he unto them, The harvest truly is great, but the labourers are few: pray ye therefore the Lord of the harvest, that he would send forth labourers into his harvest.
God had made known by the Prophets that the preaching of the Gospel of salvation was to embrace not only Israel, but also the Gentile nations; and therefore after the twelve Apostles, there were other seventy-two (Vulg. septuaginta duos.) also appointed by Christ, as it is said, After these things the Lord appointed other seventy-two also.