Ps 123:1

“"If the Lord Himself had not been in us, now may Israel say" [Psalm 124:1]...When? "When men rose up against us" [Psalm 124:2]. Marvel not: they have been subdued: for they were men; but the Lord was in us, man was not in us: for men rose up against us. Nevertheless men would crush other men, unless in those men who could not be crushed, there were not man, but the Lord. For what could men do to you, while you rejoiced, and sang, and securely held everlasting bliss? What could men do to you when they rose against you, if the Lord had not been on your side? What could they do?”

“The holy martyrs, you see, did not rely on themselves but asked for relief from Christ. That is why they were also victorious. Listen to the voices of those who do not rely on themselves; it is the voice of the holy martyrs: "Unless the Lord were among us, let Israel now say; unless the Lord were among us when people rose up against us, they would perhaps have swallowed us alive." The martyrs say, "Unless the Lord were among us," unless he had helped us, unless he had strengthened our hearts with faith, unless he had endowed us with patience, unless he had provided us with power as we fought, "they would perhaps have swallowed us alive."”

“Scripture enlightens in a circle, as, for instance, when it advises us not to flee, because we have protection all around. For we have the Lord and angels about us, wherefore the Psalm: Mountains are round about Jerusalem; so the Lord is round about His people. To the servant of Eliseus who cried out because of the Syrian robbers who sought to capture him, Eliseus said: "Lord, open his eyes, that he may see." And the Lord opened the eyes of the servant, and he saw. And behold the mountain was full of horses, and chariots of fire round about Eliseus. Jacob too, afraid of his brother, saw the angels and said: "This is the encampment of God." Wherefore the Psalm says: The Lord is my light and my salvation; whom should I fear? And in another passage: Had not the Lord been with us, let Israel say, etc., until the end.”