Exodus 19:8

9. But what that is which he saith, “they have been turned back in the day of war,” the following words do teach, wherein he hath most clearly explained this: “they have not kept,” he saith, “the testament of God, and in His law they would not walk” ( ver. 10 ). Behold what is, “they have been turned back in the day of war:” they have not kept the testament of God. When they were bending and shooting bows, they did also utter the words of most forward promise, saying, “Whatsoever things the Lord our God hath spoken we will do, and we will hear.” “They have been turned back in the day of war:” because the promise of obedience not hearing but temptation doth prove. …

31. “And He made to dwell in their tabernacles the tribes of Israel.” In the tabernacles, he saith, of the Gentiles He made the tribes of Israel to dwell, which I think can better be explained spiritually, inasmuch as unto celestial glory, whence sinning angels have been cast forth and cast down, by Christ’s grace we are being uplifted. For that generation crooked and embittering, inasmuch as for these corporal blessings they put not off the coat of oldness, “Did tempt” yet, “and provoked the high God, and His testimonies they kept not ( ver. 56 ): and they turned them away, and they kept not the covenant, like their fathers” ( ver. 57 ). …

Again He convicts them by a parable, intimating both their unreasonable obstinacy, and the submissiveness of those who were utterly condemned by them. For these two children declare what came to pass with respect to both the Gentiles and the Jews. For the former not having undertaken to obey, neither having become hearers of the law, showed forth their obedience in their works; and the latter having said, “All that the Lord shall speak, we will do, and will hearken,”in their works were disobedient. …

2. But what sprinklings shall we now employ, while we celebrate the feast? Who will be our guide, as we haste to this festival? None can do this, my beloved, but Him Whom you will name with me, even our Lord Jesus Christ Who said, ‘I am the Way.’ For it is He Who, according to the blessed John, ‘taketh away the sin of the world.’ He purifies our souls, as Jeremiah the prophet says in a certain place, ‘Stand in the ways and see, and enquire, and look which is the good path, and ye shall find in it cleansing for your souls.’ Of old time, the blood of he-goats and the ashes of a heifer, sprinkled upon those who were unclean, were fit only to purify the flesh; but now, through the grace of God the Word, every man is thoroughly cleansed. …