2. Heir to the Promise (15-16)Although Yahweh had promised that Abraham would become a great nation, by advanced old age he and Sarah still did not have children. In chapter 15, a highly significant passage, Yahweh approaches Abraham and confirms his promises with a covenant. A covenant is an oath-bound relationship with defined expectations and obligations. Covenants originated in politics and international law, and have conventional forms. We have many surviving examples of ancient Middle Eastern covenants (see McCarthy 1978). Treaty and charter covenants were the two main types of covenants in the ancient Middle East.A treaty covenant defined and regulated a relationship between nations. The parties to the covenant could be of equal power and status (a parity covenant) or of unequal status (a suzerain-vassal covenant). The covenant God made with Israel through Moses at Mount Sinai was a suzerain-vassal covenant (see Chapters 3.2 and 5). Ancient treaty covenants are analogous to the formal international alliances and trade agreements modern countries still negotiate. A charter covenant consisted of a grant of property (see Weinfeld 1970). The grant was usually made to reward faithfulness or loyal service. For example, kings would bestow land on loyal military officers after a campaign, hence it is sometimes called a royal grant covenant. This type of covenant is perhaps analogous to modern property titles and deeds.
In this passage the Yahwist uses the charter form of covenant to give shape to God's commitment to Abraham. It is a unilateral divine promise in which God binds himself by an oath to provide offspring for Abraham.
God came to Abraham in a vision, indicating Abraham's special relationship with God. The phrase "The word of YHWH came" typically introduces prophetic revelation (see 1 Samuel 15:10 and Hosea 1:1). Fear is a natural reaction when someone is in the presence of God, and therefore "Do not be afraid" is a phrase that frequently introduces announcements of salvation (see 21:17; 26:24; 35:17; as well as Isaiah 10:24).
God declared himself to be Abraham's shield, that is, his protector. The reward will not be an earned prize but a gift of special recognition for a faithful servant of the king.
Since Abraham had no natural-born son, his inheritance was due to go to his servant, Eliezer of Damascus. This story demonstrates that concern over descendants is central to the plot line. This will be a continuing interest of the Yahwist within the Ancestral Story. Lacking a son, Abraham was not sure that God's promise would ever be realized. After God reassured him that he would have numerous offspring--even more than the stars--Abraham committed his future to God, even though he saw no evidence of impending fulfillment. God took Abraham's faith as an indication that he wanted to stand in a relationship of living trust with him.
This ceremony drew Abraham into a formal relationship with God. In the ritual God demonstrated to Abraham the depth of his commitment to him. The narrative says that God took the form of a smoking oven pot and torch for the purposes of the ceremony. According to the Hebrew Bible, God has no physical form, but when he does appear, typically he is represented by smoke and fire. Such a symbolic appearance of God is called a theophany. The most notable appearance was his descent onto Mount Sinai in Exodus 19, when he appeared to the Israelites and delivered the Ten Commandments.
The entire encounter between Abraham and Yahweh in this passage is summarized in the statement, "Yahweh cut a covenant with Abram." In biblical language, "to cut a covenant" refers to the animals that were ceremonially cut in half. Cutting animals in a covenant ceremony may have been a traditional practice. Cutting an ass in half was part of a ritual of covenant ratification attested in Mari. The cutting of the animals and passing between the pieces is ritualized self-condemnation, invoking mutilation and death on oneself if one is disloyal to the covenant.
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