Ps 123:3

“"Perchance they had swallowed us up quick" [Psalm 124:3]. "Swallowed us up:" they would not first have slain us, and so have swallowed us up. O inhuman, O cruel men! The Church swallows not thus. To Peter it was said, " Kill and eat:" [Acts 10:13] not, Swallow quick. Because no man enters into the body of the Church, save he be slain first. What he was dies, that he may be what he was not. Otherwise, he who is not slain, and is not eaten by the Church, may be in the visible number of the people: but he cannot be in the number of the people which is known to God, whereof the Apostle says, "The Lord knows who are His," [2 Timothy 2:19] save he be eaten; and eaten he cannot be, save he first be slain. The Pagan comes, still in him idolatry lives; he must be grafted among the members of Christ: that he may be engrafted, he must needs be eaten; but he cannot be eaten by the Church, save first he be slain. Let him renounce the world, then is he slain; let him believe in God, then is he eaten...But they in whom the Lord is, are slain and die not. But they who consent and live, are swallowed quick, when swallowed up they die. But they who have suffered, and have not yielded to tribulations, rejoice and say, "If the Lord had not been in us," etc.”