The Abrahamic Covenant

The Hebrew berith is usually translated 'covenant', but the English word has drifted toward the sentimental. Berith is a binding legal instrument. It creates obligation, names parties, states terms, and attaches consequences. Ancient Near Eastern treaty texts from the Hittite and Assyrian archives share its structure closely enough that scholars read them alongside the biblical material.

The idiom is not simply 'make a covenant' (the BSB's rendering in 15:18, which hides the idiom) but karath berith, to cut a covenant, a phrase that points at the ritual in Genesis 15 rather than at any notion of agreement in the abstract.

Abram is told to bring five animals, divide three of them, and lay the halves opposite each other. In the one other biblical description of the rite (Jeremiah 34:18-19), the party taking on the obligation walked between the pieces, invoking on itself the fate of the animals should it break the terms. It is a self-maledictory oath: may I be cut in two if I fail.

What happens instead is the interpretive centre of the chapter. Abram falls into a deep sleep, and a smoking firepot and flaming torch, theophanic images of God's presence, pass between the pieces alone. Abram never walks. God binds himself unilaterally and assumes the entire sanction.

This is why the Abrahamic covenant is classed as unconditional in most systematic treatments, in contrast to the Mosaic covenant at Sinai, where Israel's obedience is a stated condition of continued blessing in the land. The classification is argued, not settled. Genesis 17:1 and 17:14 attach obligations and a penalty, and 22:16-18 and 26:5 tie the promise to Abraham's obedience, so many covenant theologians call it unconditional in its foundation but conditional in who enjoys its blessings.

The content of the covenant resolves into three strands, each traceable through the rest of Scripture. Land: a specific territory, described in 15:18 by its boundary rivers. Seed: descendants numbered as the stars, and through them a great nation. Blessing: the outward movement already announced in 12:3, by which all the families of the earth are blessed.

The three do not develop evenly. Land dominates the Torah and the historical books. Seed carries the genealogies and the royal line. Blessing lies comparatively dormant until the prophets take it up, and Paul in Galatians 3:8 reads it as the gospel foretold to Abraham.

Genesis 17 adds the sign. Circumcision is designated 'a sign of the covenant', applied to every male at eight days old, including those born in the household and those purchased from a foreigner. It is not the covenant itself; it is the mark of it.

Two features are worth pressing. First, the sign is given to infants who have made no profession. The covenant precedes the response, which is why this chapter is central to Reformed arguments for infant baptism and why Baptist theologians locate the discontinuity at exactly this point. Second, Deuteronomy and then the prophets speak of circumcision of the heart (Deuteronomy 10:16, Jeremiah 4:4), signalling that the physical mark was never meant to be self-sufficient.