Furthermore, my friends, when Moses had now succeeded in bringing them across the sea, they saw their pursuers drown before their eyes. Then they rejoiced greatly, and with songs thanked God, who had so mightily helped them. They were, however, not yet in the promised land, but on the way to the same. And Moses their leader went before them, and brought them to Mount Sinai; and he, the faithful servant of the Lord, went up into the mount and there received the law of the Lord, which was written with the finger of God in two tables of stone. When Moses had received these two tables of stone from the hand of the Lord, to lay them before the people, that they should do according to them, for now the service of the Lord commenced; and as yet they had received no ordinance from God, save circumcision; hence, if they were now to serve God, they must also have the commandments, the Lord said to Moses: “Go, get thee down from the mount; for the people have corrupted themselves.” Ex. 32:7. Now when Moses went down from the mount, and saw the people dancing around the calf, rejoicing in the work of their hands, he cast down the two tables of stone and brake them beneath the mount, and with a grieved heart addressed Aaron, saying: What hast thou done, that thou has brought this people to so great a sin? Aaron excused himself before Moses, and said: My lord, thou knowest that this people is a stiffnecked people. They fell upon me and I demanded of them their golden earrings, and other gold; and I received it from their hands, and fashioned it with a graving tool, and hence this calf came. Moses took the calf, and ground it to powder, and strewed it upon the water, and made the children of Israel drink of it. And Moses addressed the Levites, and said to them: “Put every man his sword by his side, and go in and out from gate to gate throughout the camp, and slay every man his brother, and every man his companion, and every man his neighbor.” And there fell three thousand men. Behold now, my dear kind friends, these three thousand had left Egypt and Pharaoh, and were gone out of it, in order that they should possess the goodly land; now if they had boasted themselves of the goodly land (promised by God to Abraham and his seed), would it not have been vain boasting? Certainly.
And Korah, Dathan and Abiram, with two hundred and fifty others, who offered incense before the Lord, perished from the multitude, together with fourteen thousand and seven hundred that murmured against Moses, and said: “Ye have killed the people of the Lord.” Num. 16.
See, my good friends, they claimed to be the people of God, though they were not it; and again, Moses the faithful servant of the Lord was said to have done it, though it was not he, but their own sins that did it. And if the truth had been told, it would also have been so said; but the truth is also now at the present day often perverted, and things are asserted to be true when they are not. Again, if the twenty-four thousand whoremongers (Numbers 25:1), together with three thousand more and many others, who all perished in the wilderness because of their sins and transgressions, had all greatly boasted themselves of the goodly land, would this not have been vain boasting? Certainly. Hence, it is vain to boast of one’s self; but to boast according to the truth is right. For Moses said to them: Hear, O Israel: Thou shalt love the Lord thy God with all thine heart, and with all thy might. These words which I command thee this day, shall be in thine heart: and thou shalt write them upon the posts of thy doors; talk of them when thou walkest by the way with thy children; and let them be for a memorial in thine hand. Deut. 6:4, etc. Thus Moses strictly exhorted the people, and most diligently presented the law of the Lord to them; and the people said: Yea, but did not do it.