i've already been over all of that you got posted above.
interesting thing about that old covenant, the only thing the apostles had to go on was the law and the prophets.
They relied on the testimony Moses provided them, found in Deuteronomy 4:
9 Only take heed to yourself, and diligently keep yourself, lest you forget the things your eyes have seen, and lest they depart from your heart all the days of your life. And teach them to your children and your grandchildren, 10 especially concerning the day you stood before the LORD your God in Horeb, when the LORD said to me, ‘Gather the people to Me, and I will let them hear My words, that they may learn to fear Me all the days they live on the earth, and that they may teach their children.’
11 “Then you came near and stood at the foot of the mountain, and the mountain burned with fire to the midst of heaven, with darkness, cloud, and thick darkness. 12 And the LORD spoke to you out of the midst of the fire. You heard the sound of the words, but saw no form; you only heard a voice. 13 So He declared to you His covenant which He commanded you to perform, the Ten Commandments; and He wrote them on two tablets of stone. 14 And the LORD commanded me at that time to teach you statutes and judgments, that you might observe them in the land which you cross over to possess.
This is a recital of the events recorded in Exodus 20-24, when the ten commandments was conveyed to the children of Israel. Following this testimony in Deuteronomy 4, Moses then states the same covenant in the following chapter, Deuteronomy 5:
1 And Moses called all Israel, and said to them: “Hear, O Israel, the statutes and judgments which I speak in your hearing today, that you may learn them and be careful to observe them. 2 The LORD our God made a covenant with us in Horeb. 3 The LORD did not make this covenant with our fathers, but with us, those who are here today, all of us who are alive. 4 The LORD talked with you face to face on the mountain from the midst of the fire. 5 I stood between the LORD and you at that time, to declare to you the word of the LORD; for you were afraid because of the fire, and you did not go up the mountain. He said:
6 ‘I am the LORD your God who brought you out of the land of Egypt, out of the house of bondage.
7 ‘You shall have no other gods before Me.
8 ‘You shall not make for yourself a carved image—any likeness of anything that is in heaven above, or that is in the earth beneath, or that is in the water under the earth; 9 you shall not bow down to them nor serve them. For I, the LORD your God, am a jealous God, visiting the iniquity of the fathers upon the children to the third and fourth generations of those who hate Me, 10 but showing mercy to thousands, to those who love Me and keep My commandments.
11 ‘You shall not take the name of the LORD your God in vain, for the LORD will not hold him guiltless who takes His name in vain.
12 ‘ Observe the Sabbath day, to keep it holy, as the LORD your God commanded you. 13 Six days you shall labor and do all your work, 14 but the seventh day is the Sabbath of the LORD your God. In it you shall do no work: you, nor your son, nor your daughter, nor your male servant, nor your female servant, nor your ox, nor your donkey, nor any of your cattle, nor your stranger who is within your gates, that your male servant and your female servant may rest as well as you. 15 And remember that you were a slave in the land of Egypt, and the LORD your God brought you out from there by a mighty hand and by an outstretched arm; therefore the LORD your God commanded you to keep the Sabbath day.
16 ‘ Honor your father and your mother, as the LORD your God has commanded you, that your days may be long, and that it may be well with you in the land which the LORD your God is giving you.
17 ‘You shall not murder.
18 ‘You shall not commit adultery.
19 ‘You shall not steal.
20 ‘You shall not bear false witness against your neighbor.
21 ‘You shall not covet your neighbor’s wife; and you shall not desire your neighbor’s house, his field, his male servant, his female servant, his ox, his donkey, or anything that is your neighbor’s.’
22 “These words the LORD spoke to all your assembly, in the mountain from the midst of the fire, the cloud, and the thick darkness, with a loud voice; and He added no more. And He wrote them on two tablets of stone and gave them to me.
In case you're having difficulty recognizing the covenant Moses documented in this chapter, that is the ten commandments. That was the only covenant that originated from Mount Sinai, as Moses taught the book of the law at Horeb. This singularity of origin is what Galatians 4:24 refers to when it introduces the allegory of the bondwoman with these words:
For these are the two covenants: the one from Mount Sinai which gives birth to bondage, which is Hagar...
The ten commandments was the first covenant, the
only covenant from Mount Sinai. It isn't possible for you to feign ignorance considering how many times this has been shown to you.