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1 And he said unto Moses, Come up unto the LORD, thou, and Aaron, Nadab, and Abihu, and seventy of the elders of Israel; and worship ye afar off. 2 And Moses alone shall come near the LORD: but they shall not come nigh; neither shall the people go up with him. 3 And Moses came and told the people all the words of the LORD, and all the judgments: and all the people answered with one voice, and said, All the words which the LORD hath said will we do. 4 And Moses wrote all the words of the LORD, and rose up early in the morning, and builded an altar under the hill, and twelve pillars, according to the twelve tribes of Israel. 5 And he sent young men of the children of Israel, which offered burnt offerings, and sacrificed peace offerings of oxen unto the LORD. 6 And Moses took half of the blood, and put it in basons; and half of the blood he sprinkled on the altar. 7 And he took the book of the covenant, and read in the audience of the people: and they said, All that the LORD hath said will we do, and be obedient. 8 And Moses took the blood, and sprinkled it on the people, and said, Behold the blood of the covenant, which the LORD hath made with you concerning all these words. 9 Then went up Moses, and Aaron, Nadab, and Abihu, and seventy of the elders of Israel: 10 And they saw the God of Israel: and there was under his feet as it were a paved work of a sapphire stone, and as it were the body of heaven in his clearness. 11 And upon the nobles of the children of Israel he laid not his hand: also they saw God, and did eat and drink. 12 And the LORD said unto Moses, Come up to me into the mount, and be there: and I will give thee tables of stone, and a law, and commandments which I have written; that thou mayest teach them. 13 And Moses rose up, and his minister Joshua: and Moses went up into the mount of God. 14 And he said unto the elders, Tarry ye here for us, until we come again unto you: and, behold, Aaron and Hur are with you: if any man have any matters to do, let him come unto them. 15 And Moses went up into the mount, and a cloud covered the mount. 16 And the glory of the LORD abode upon mount Sinai, and the cloud covered it six days: and the seventh day he called unto Moses out of the midst of the cloud. 17 And the sight of the glory of the LORD was like devouring fire on the top of the mount in the eyes of the children of Israel. 18 And Moses went into the midst of the cloud, and gat him up into the mount: and Moses was in the mount forty days and forty nights.
[AD 390] Gregory of Nazianzus on Exodus 24:2
For it is not everyone who may draw near to God but only one who, like Moses, can bear the glory of God. Moreover, before this, when the law was first given, the trumpet blasts, and lightnings, and thunders, and darkness, and the smoke of the whole mountain, and the terrible threats that if even a beast touched the mountain it should be stoned, and other like alarms kept back the rest of the people, for whom it was a great privilege, after careful purification, merely to hear the voice of God. But Moses actually went up, and entered into the cloud, and was charged with the law and received the tables. For the multitude, the tables of law are viewed according to the letter. But for those who are above the multitude, these are viewed according to the spirit.

[AD 1781] Richard Challoner on Exodus 24:4
Titles: That is, pillars.
[AD 1781] Richard Challoner on Exodus 24:5
Holocausts: Whole burnt offerings, in which the whole sacrifice was consumed with fire upon the altar.
[AD 69] Hebrews on Exodus 24:8
Then verily the first covenant had also ordinances of divine service, and a worldly sanctuary. For there was a tabernacle made; the first, wherein was the candlestick, and the table, and the shewbread; which is called the sanctuary. And after the second veil, the tabernacle which is called the Holiest of all; Which had the golden censer, and the ark of the covenant overlaid round about with gold, wherein was the golden pot that had manna, and Aaron's rod that budded, and the tables of the covenant; And over it the cherubims of glory shadowing the mercyseat; of which we cannot now speak particularly. Now when these things were thus ordained, the priests went always into the first tabernacle, accomplishing the service of God. But into the second went the high priest alone once every year, not without blood, which he offered for himself, and for the errors of the people: The Holy Ghost this signifying, that the way into the holiest of all was not yet made manifest, while as the first tabernacle was yet standing: Which was a figure for the time then present, in which were offered both gifts and sacrifices, that could not make him that did the service perfect, as pertaining to the conscience; Which stood only in meats and drinks, and divers washings, and carnal ordinances, imposed on them until the time of reformation. But Christ being come an high priest of good things to come, by a greater and more perfect tabernacle, not made with hands, that is to say, not of this building; Neither by the blood of goats and calves, but by his own blood he entered in once into the holy place, having obtained eternal redemption for us. For if the blood of bulls and of goats, and the ashes of an heifer sprinkling the unclean, sanctifieth to the purifying of the flesh: How much more shall the blood of Christ, who through the eternal Spirit offered himself without spot to God, purge your conscience from dead works to serve the living God? And for this cause he is the mediator of the new testament, that by means of death, for the redemption of the transgressions that were under the first testament, they which are called might receive the promise of eternal inheritance. For where a testament is, there must also of necessity be the death of the testator. For a testament is of force after men are dead: otherwise it is of no strength at all while the testator liveth. Whereupon neither the first testament was dedicated without blood. For when Moses had spoken every precept to all the people according to the law, he took the blood of calves and of goats, with water, and scarlet wool, and hyssop, and sprinkled both the book, and all the people, Saying, This is the blood of the testament which God hath enjoined unto you. [Exodus 24:8] Moreover he sprinkled with blood both the tabernacle, and all the vessels of the ministry. And almost all things are by the law purged with blood; and without shedding of blood is no remission.
[AD 430] Augustine of Hippo on Exodus 24:10
Moses, of course, might be thought to have seen God with bodily eyes, if not only the Wisdom of God which is Christ but even the wisdom itself … [which] can be seen with the eyes of the flesh, or because it is written of the elders of Israel that “they beheld the place where the God of Israel had stood” and that there was “under his feet as it were a work of sapphire stone and a likeness of the firmament of heaven.” We might therefore be led to imagine that the Word and the Wisdom of God, who extends from end to end mightily and orders all things sweetly, stood in his own substance within the space of an earthly place. And thus the Word of God, through whom all things were made, is thought changeable so that now he draws himself together and now he expands. May God cleanse the hearts of his faithful from such thoughts! But, as we have often declared, all these visible and tangible signs were displayed through a creature that has been made subject, in order to signify the invisible and intelligible God, not only the Father but also the Son and the Holy Spirit, from whom are all things, through whom are all things, and in whom are all things. Since the creation of the world, the invisible attributes of God, his everlasting power also and divinity, are seen, being understood through the things that are made.

[AD 735] Bede on Exodus 24:12
Mystically the rolling away of the stone implies the disclosure of the sacraments, which were formerly hidden and closed up by the letter of the law. The law was written on stone. Indeed in the case of each of us, when we acknowledge our faith in the Lord’s passion and resurrection, his tomb, which had been closed, is opened up.

[AD 397] Ambrose of Milan on Exodus 24:18
If anyone therefore desires to behold this image of God, he must love God so as to be loved by him, no longer as a servant but as a friend who observes his commandments, that he may enter the cloud where God is.

[AD 407] John Chrysostom on Exodus 24:18
Do you now recognize the harm caused by intemperance? Look in turn at the instances of good behavior due to fasting. The great Moses, after keeping his fast for forty days, was able to get the tables of the law. When he came down from the mountain and saw the people’s sin, the tablets which he had been successful in obtaining through such intercession he threw down and smashed, thinking it was preposterous that an indulgent and sinful people should receive laws of the Lord’s own making.

[AD 450] Peter Chrysologus on Exodus 24:18
Moses himself was so purified and freed from his body by a fast of forty days that his whole self took on a glorious appearance of divinity. Still in the darkness of our body, he gleamed with the full radiance of divinity. The eyes of mortals could not gaze upon him who, long nourished by the substance of God, had forgotten all about the aids provided by mortals’ food. From this he learned that the sustenance of life does not fail those who live in God’s sight and with him.