Cyril of Alexandria : The church is often called "the holy mountain" in the sacred Scriptures, and those from Israel are only a small part of it. For if they had demonstrated faith in our Lord Jesus Christ, the company of the faith would have sprung from them for the most part and the Gentiles would have been added in to complete the number. But because of the serious disobedience of the Jews, the people of the church were consequently largely drawn from the nations, and these provided the majority; the former people were few in number (for a remnant shall be saved), so only in small measure will they be called on to the holy mountain, that is, into the church. — COMMENTARY ON Isaiah 5:5.63:18-19 Eusebius of Caesarea : And you did this on account of our turning away from you. For we are now a desert untended by your careful attention. We are now like we were in the beginning. For there was a time when we had neither prophet nor priest not king nor any of your gifts of grace—in like manner we have now come back to the desert. Such were we in Egypt frittering away time before Moses took us out of there. Neither did we have your name to adorn us when we were not called your people, and we did not have a share in your inheritance. And now we have arrived at a similar point. It is right to refer these words to the season after the arrival of our Savior, by whom all those things will in the end be put behind them, through what was dared by our Savior for them. — COMMENTARY ON Isaiah 2:54 Theodoret of Cyrus : The holy of holies of the sanctuary, which it was forbidden to touch and to which access was reserved for priests alone, has been despoiled and trampled by impious enemies. For the Babylonians were not the only impious ones; the Macedonians and the Romans were also, when they devastated Jerusalem.… We have resembled our ancestors who, in the time of slavery in Egypt, had not yet received the title of "your people." — COMMENTARY ON Isaiah 20:63.17-19