Genesis 17:7
5 No longer will your name be Abram. Instead, your name will be Abraham because I will make you the father of a multitude of nations. 6 I will make you extremely fruitful. I will make nations of you, and kings will descend from you. 7 I will confirm my covenant as a perpetual covenant between me and you. It will extend to your descendants after you throughout their generations. I will be your God and the God of your descendants after you. 8 I will give the whole land of Canaan—the land where you are now residing—to you and your descendants after you as a permanent possession. I will be their God.” 9 Then God said to Abraham, “As for you, you must keep the covenantal requirement I am imposing on you and your descendants after you throughout their generations.
Exodus 29:45
43 There I will meet with the Israelites, and it will be set apart as holy by my glory. 44 “So I will set apart as holy the tent of meeting and the altar, and I will set apart as holy Aaron and his sons that they may minister as priests to me. 45 I will reside among the Israelites, and I will be their God, 46 and they will know that I am the Lord their God, who brought them out from the land of Egypt, so that I may reside among them. I am the Lord their God.
Notes and References
"... As we turn to the specific relationship between God and Israel, we find that although there are many different forms of covenant in the Bible, the covenant between God and Israel is presented in terms of a basic “covenant formula.” This can be expressed in the form, “I ... will be your God, and you shall be my people” (e.g., Leviticus 26:12). This runs through the Bible like lettering through a stick of rock. As Rolf Rendtorff notes, “The linguistic formulations [of the covenant between God and Israel] are firmly fixed.” The recurrence of the covenant formula, together with the fact that the Hebrew Bible only ever refers to the word berit in the singular, makes it difficult to speak of different covenants — plural — between God and Israel. This suggests that it is more accurate to speak of a single covenant than a multiplicity of covenants. The idea of a single covenant is deeply rooted in Israel’s traditions. First, from the divine perspective, there is only one covenant. This is because although Israel breaks the covenant many times (compare Leviticus 26:15), God promises to keep the covenant (Leviticus 26:44). Second, God’s initial covenant with Abraham is referred to in “once-for-all” terms as an “everlasting covenant” (Genesis 17:7, 19), although of course it is true that different facets of it receive different emphases at different times ..."
Burnside, Jonathan P. God, Justice, and Society: Aspects of Law and Legality in the Bible (pp. 36-37) Oxford University Press, 2011