Exodus 24:1-18

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. And Moses alone shall come near to the Lord: but thou shalt not come near; neither shall the people go up with him. And Moses came up and told the people all the words of the Lord, and the judgments: and all of the people answered with one voice, and said, All the words which the Lord hath said we will do (Exodus 24:1-3).

Words are sure cheap. Here Moses lays upon them all these judgments. They said, "Oh, everything the Lord says, we will do. Oh God, everything I have belongs to You." Words are sure cheap, aren't they? Too bad, because it isn't what I say that really counts, it's what I do.

Moses wrote all the words of the Lord, he rose up early in the morning, he built an altar under the hill with twelve pillars, according to the twelve tribes of Israel. And he sent the young men of the children of Israel, which offered burnt offerings, and sacrificed peace offerings of oxen unto the Lord. Moses took half of the blood, put it in basins; and half of the blood he sprinkled on the altar. And he took the book of the covenant, and read it in the audience of the people: and they said, All that the Lord hath said we will do, and be obedient. 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 (Exodus 24:4-8).

So this experience of sprinkling the people with the blood from these sacrifices and so forth, the blood covenant is referred to in the book of Hebrews. As we were going through the book of Hebrews we dealt with all of the things under the law, sanctified with the blood, for without the shedding of blood was nothing sanctified. How the new covenant that we have in Christ, of course, was also sanctified through the blood of Christ. The better covenant. This was the old covenant that was disannulled. This is the old covenant that didn't work. Why? Because the old covenant was predicated upon the people doing these things. It was predicated upon the people's faithfulness, the people weren't faithful.
So God has established in Christ a new covenant that is predicated now upon the faithfulness of God to do what He said He would do. Now because the new covenant is predicated upon God's faithfulness, the new covenant will stand. It cannot fail because God will not fail. So I thank God for the new covenant relationship that I have with God through Jesus Christ, a covenant that cannot fail. I'm sure that God's gonna do all that He has said He would do through Christ. Now it's not predicated upon my doing, but my believing in God, and in that work of Jesus Christ. I don't have to send twenty-five bucks.

Then went up Moses, and Aaron, Nadab, and Abihu, and seventy of the elders of Israel: And they saw the God of Israel: and there was under his feet as it were a paved work of sapphire stone, and as it were the body of heaven in clearness (Exodus 24:9-10).

So they saw God, they saw the glassy sea before the throne of God. John describes it, "the sea of glass, crystal before the throne of God"(Revelation 4:6).

Now you say, "Wait a minute. What do you mean they saw God?" Because in the gospel of John, John declares, "No man hath seen God at any time, but the only begotten Son who is in the bosom of the Father, He hath manifested Him"(John 1:18). What does it mean then, "They saw God"? I don't know, but I have to compare scripture with scripture, and the fact that we read "no man hath seen God at any time but the only begotten Son which is in the bosom of the Father, He has declared Him." The scripture also declares that you cannot see God and live.

I must assume that when it declares, "and they saw the God of Israel and this crystal sea", that they saw Him perhaps in a vision form, as Isaiah and as Ezekiel, and as others saw God, in a vision form, but did not actually see God Himself, which is impossible for man to do. "No man has seen God at any time."
They went up and they saw God,

And upon the nobles of the children of Israel he laid not his hand: and they saw God, and did eat and drink. [That is, a fellowship with God.] And the Lord said unto Moses, Come up to me in the mount, and be there; and I will give to thee the tables of stone, and a law, and commandments which I have written; that you may teach them. And so Moses rose up, and his minister [or his servant] Joshua: and Moses went up into the mount of God. And he said unto the elders, Tarry ye here for us, [or wait for us] until we come again to you: and behold, Aaron and Hur are with you: and if any man have any matters to do, let him come unto them. And Moses went up into the mount, and a cloud covered the mount. And the glory of the Lord abode upon mount Sinai, and the cloud covered it for six days: and the seventh day he called unto Moses out of the midst of the cloud. And the sight of the glory of the Lord was like a devouring fire on the top of the mount in the eyes of the children of Israel. And Moses went into the midst of the cloud, and he got him up into the mount: and Moses was up in the mount for forty days and for forty nights (Exodus 24:11-18).

While he was there God gave to him the details for the building of the tabernacle where God would come to meet the people of Israel, the meeting place for God to meet the people. God gave him exact and specific dimensions and all for the tabernacle and for the things that were to be in the tabernacle. "