Not according to God so forgive me if I choose to trust His Word over anyone else. The Ten Commandments and the law of Moses are two separate covenants.
There were not two covenants made with Israel. Moses did not give any laws. They were God’s laws relayed to Moses to give to Israel.
The scriptures below should explain.
The first mention of God’s Covenant with Israel is just after Israel left Egypt and arrived at the wilderness of Sinai and pitched a camp near the Mount. God spoke to Moses and relayed what He wanted Moses to tell Israel.
Exodus 19:1-5 KJV
1 In the third month, when the children of Israel were gone forth out of the land of Egypt, the same day came they into the wilderness of Sinai.
2 For they were departed from Rephidim, and were come to the desert of Sinai, and had pitched in the wilderness; and there
Israel camped before the mount.
3 And Moses went up unto God, and the LORD called unto him out of the mountain, saying,
Thus shalt thou say to the house of Jacob, and tell the children of Israel;
4 Ye have seen what I did unto the Egyptians, and how I bare you on eagles' wings, and brought you unto myself.
5 Now therefore, if ye will obey my voice indeed,
and keep my covenant, then ye shall be a peculiar treasure unto me above all people: for all the earth is mine:
6. And ye shall be unto me a kingdom of priests, and an holy nation.
These are the words which thou shalt speak unto the children of Israel.
Later Moses spoke to the elders about God’s
Covenant and what God commanded, which the people
agreed to the terms. Then Moses took their words back to God. So, at this point was the establishment of God’s Covenant with Israel. There had to be an agreement. Just like a contract between two people.
Exodus 19:7-8 KJV
7 And Moses came and called for the elders of the people, and laid before their faces
all these words which the LORD commanded him.
8
And all the people answered together, and said, All that the LORD hath spoken we will do. And Moses returned the words of the people unto the LORD.
After Moses returned the words of the people to the Lord, God decided He would speak to Moses in a thick cloud so the people will hear Him speaking to Moses and they will believe him.
Therefore God told Moses to sanctify the people and on the third day He will come down in the sight of all the people.
Exodus 19:9-11 KJV
9 And the LORD said unto Moses, Lo, I come unto thee in a thick cloud, that the people may hear when I speak with thee, and believe thee for ever. And Moses told the words of the people unto the LORD.
10 And the LORD said unto Moses, Go unto the people, and sanctify them to day and to morrow, and let them wash their clothes,
11 And be ready against the third day: for the third day the LORD will come down in the sight of all the people upon mount Sinai.
Exodus 19:16-19 KJV
16 And it came to pass on the third day in the morning, that there were thunders and lightnings, and a thick cloud upon the mount, and the voice of the trumpet exceeding loud; so that all the people that was in the camp trembled.
17 And
Moses brought forth the people out of the camp to meet with God; and they stood at the nether part of the mount.
18 And mount Sinai was altogether on a smoke, because the LORD descended upon it in fire: and the smoke thereof ascended as the smoke of a furnace, and the whole mount quaked greatly.
19 And when the voice of the trumpet sounded long, and waxed louder and louder,
Moses spake, and God answered him by a voice.
So at this point, the covenant had already been established in Exodus 19:5 KJV, and Exodus 19:8 KJV. It was after the Covenant had been established that God spoke to the people, and gave the ten commandments to Israel under the Covenant that had been established.
The priest and the people could not come up to the Mount unless they would be killed. Only Moses and Aaron was allowed. So Moses went down and relayed the word of God to the people.
The first mention of the Ten Commandments was after the establishment of the Covenant relayed to the people by Moses from God.
Exodus 19:25 KJV
So Moses went down unto the people, and spake unto them.
Exodus 20:1-17 KJV
1 And God spake all these words, saying,
2 I am the LORD thy God, which have brought thee out of the land of Egypt, out of the house of bondage.
3 Thou shalt have no other gods before me.
4 Thou shalt not make unto thee any graven image, or any likeness of any thing that is in heaven above, or that is in the earth beneath, or that is in the water under the earth:
5 Thou shalt not bow down thyself to them, nor serve them: for I the LORD thy God am a jealous God, visiting the iniquity of the fathers upon the children unto the third and fourth generation of them that hate me;
6 And shewing mercy unto thousands of them that love me, and keep my commandments.
7 Thou shalt not take the name of the LORD thy God in vain; for the LORD will not hold him guiltless that taketh his name in vain.
8 Remember the sabbath day, to keep it holy.
9 Six days shalt thou labour, and do all thy work:
10 But the seventh day is the sabbath of the LORD thy God: in it thou shalt not do any work, thou, nor thy son, nor thy daughter, thy manservant, nor thy maidservant, nor thy cattle, nor thy stranger that is within thy gates:
11 For in six days the LORD made heaven and earth, the sea, and all that in them is, and rested the seventh day: wherefore the LORD blessed the sabbath day, and hallowed it.
12 Honour thy father and thy mother: that thy days may be long upon the land which the LORD thy God giveth thee.
13 Thou shalt not kill.
14 Thou shalt not commit adultery.
15 Thou shalt not steal.
16 Thou shalt not bear false witness against thy neighbour.
17 Thou shalt not covet thy neighbour's house, thou shalt not covet thy neighbour's wife, nor his manservant, nor his maidservant, nor his ox, nor his ass, nor any thing that is thy neighbour's.
So as you can see God was on the Mount speaking with Moses before the people in a cloud of smoke relaying the Ten Commandments to the people. The people were afraid and asked Moses to only speak with them.
Exodus 20:18-20 KJV
18 And all the people saw the thunderings, and the lightnings, and the noise of the trumpet, and the mountain smoking: and when the people saw it, they removed, and stood afar off.
19 And they said unto Moses, Speak thou with us, and we will hear: but let not God speak with us, lest we die.
20 And Moses said unto the people, Fear not: for God is come to prove you, and that his fear may be before your faces, that ye sin not.
After God gave the Ten Commandments to Moses under a thick cloud, He continued to speak to Moses and gave more commandments while the people stood afar off.
Exodus 20:21-22 KJV
21 And the people stood afar off, and Moses drew near unto the thick darkness where God was.
22
And the LORD said unto Moses, Thus thou shalt say unto the children of Israel, Ye have seen that I have talked with you from heaven.
Exodus 20:23-26 KJV
23 Ye shall not make with me gods of silver, neither shall ye make unto you gods of gold.
24 An altar of earth thou shalt make unto me, and shalt sacrifice thereon thy burnt offerings, and thy peace offerings, thy sheep, and thine oxen: in all places where I record my name I will come unto thee, and I will bless thee.
25 And if thou wilt make me an altar of stone, thou shalt not build it of hewn stone: for if thou lift up thy tool upon it, thou hast polluted it.
26 Neither shalt thou go up by steps unto mine altar, that thy nakedness be not discovered thereon.
Here are all the rest of the commands and laws God spoke to Israel while they stood near the Mount. Exodus 21:1-36 KJV, Exodus 22:1-31 KJV, Exodus 23:1-33 KJV.
Afterwards, the people agreed to the commands and laws of the Covenant - the Covenant they had already agreed to in Exodus 19:8 KJV
Exodus 24:3 KJV
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.
It was after Moses spoke the words of God to the people, that he wrote all the words of the Lord.
You should now be able to see that God established the Covenant with Israel first. Then under the already established Covenant He gave the Ten Commandments and the other commandments and laws. All under one covenant, which is the old covenant that was done away with in Christ. We are under a new covenant.