It looks like to me that the covenant at Mount Horeb was for Yahowah to give the Israelites the Torah and for the Israelites to listen to the Torah, learn the Torah, and guard the Torah and pass it on to their children and children's children. Abraham, Issac, and Jacob didn't have the “capitol T” Torah but they did have “lower-case t” torah (teaching).
Deu 5:1 And Mosheh called all Yisra¡¯ĕl, and said to them, Hear, O Yisra¡¯ĕl, the laws and right-rulings which I speak in your hearing today. And you shall learn them, and guard to do them.
Deu 5:2 יהוה our Elohim made a covenant with us in Horĕb.
Deu 5:3 יהוה did not make this covenant with our fathers, but with us, those who are here today, all of us who are alive.
Deu 5:4 יהוה spoke with you face to face on the mountain from the midst of the fire.
Exo 34:4 And he cut two tablets of stone like the first ones. Then Mosheh rose early in the morning and went up Mount Sinai, as יהוה had commanded him, and he took two tablets of stone in his hand.
Exo 34:5 And יהוה came down in the cloud and stood with him there, and proclaimed the Name, יהוה.
Exo 34:6 And יהוה passed before him and proclaimed, ¡°יהוה, יהוה, an Ěl compassionate and showing favor, patient, and great in kindness and truth,
Exo 34:7 watching over kindness for thousands, forgiving crookedness and transgression and sin, but by no means leaving unpunished1, visiting the crookedness of the fathers upon the children and the children¡¯s children to the third and the fourth generation.¡± Footnote: 1This is confirmed in Num. 14:18, and in Jer. 30:11.
Exo 34:8 And Mosheh hurried and bowed himself toward the earth, and did obeisance,
Exo 34:9 and said, If, now, I have found favour in Your eyes, O יהוה, I pray, let יהוה go on in our midst, even though we are a stiff-necked people. And forgive our crookedness and our sin, and take us as Your inheritance.
Exo 34:10 And He said, See, I am making a covenant. Before all your people I am going to do wonders such as have not been done in all the earth, nor in any nation. And all the people among whom you are shall see the work of יהוה. For what I am doing with you is awesome.
Exo 34:11 Guard what I command you today. See, I am driving out from before you the Amorite and the Kenaʽanite and the Hittite and the Perizzite and the Hiwwite and the Yebusite.
Exo 34:12 Guard yourself, lest you make a covenant with the inhabitants of the land where you are going, lest it be a snare in your midst.
Exo 34:13 But break down their altars, and smash their pillars, and cut down their Ashĕrim.
Exo 34:27 And יהוה said to Mosheh, Write these Words, for according to the mouth of these Words I have made a covenant with you and with Yisra¡¯ĕl.
Exo 34:28 And he was there with יהוה forty days and forty nights. He did not eat bread and he did not drink water. And He wrote on the tablets the Words of the covenant, the Ten Words.
Exo 34:29 And it came to be, when Mosheh came down from Mount Sinai, while the two tablets of the Witness were in Mosheh¡¯s hand when he came down from the mountain, that Mosheh did not know that the skin of his face shone since he had spoken with Him.
Exo 34:30 And Aharon and all the children of Yisra¡¯ĕl looked at Mosheh and saw the skin of his face shone, and they were afraid to come near him.
Exo 34:31 But Mosheh called out to them, and Aharon and all the rulers of the congregation returned to him, and Mosheh spoke to them.
Exo 34:32 And afterward all the children of Yisra¡¯ĕl came near, and he commanded them all that יהוה had spoken with him on Mount Sinai.
Exo 34:33 And when Mosheh ended speaking with them, he put a veil on his face.
Exo 34:34 But whenever Mosheh went in before יהוה to speak with Him, he would remove the veil until he came out. And when he came out he spoke to the children of Yisra¡¯ĕl what he had been commanded,
Shalom