was enveloped in fire and smoke, the produce of the consuming fire, - both symbols of the wrath of God (cf. Psa 18:9, and Hengstenberg in loc.), whose fiery zeal consumes whatever opposes it (vid., Exo 3:2). - To establish and give reality to the covenant to be concluded with Abram, Jehovah would have to pass through the seed of Abram when oppressed by the Egyptians and threatened with destruction, and to execute judgment upon their oppressors (Exo 7:4; Exo 12:12). In this symbol, the passing of the Lord between the pieces meant something altogether different from the oath of the Lord by Himself in Gen 22:16, or by His life in Deu 32:40, or by His soul in Amo 6:8 and Jer 51:14. It set before Abram the condescension of the Lord to his seed, in the fearful glory of His majesty as the judge of their foes. Hence the pieces were not consumed by the fire; for the transaction had reference not to a sacrifice, which God accepted, and in which the soul of the offerer was to ascend in the smoke to God, but to a covenant in which God came down to man. From the nature of this covenant, it followed, however, that God alone went through the pieces in a symbolical representation of Himself, and not Abram also. For although a covenant always establishes a reciprocal relation between two individuals, yet in that covenant which God concluded with a man, the man did not stand on an equality with God, but God established the relation of fellowship by His promise and His gracious condescension to the man, who was at first purely a recipient, and was only qualified and bound to fulfil the obligations consequent upon the covenant by the reception of gifts of grace.
verses 18-21
In Gen 15:18-21 this divine revelation is described as the making of a covenant (בּרית, from בּרה to cut, lit., the bond concluded by cutting up the sacrificial animals), and the substance of this covenant is embraced in the promise, that God would give that land to the seed of Abram, from the river of Egypt to the great river Euphrates. The river (נהר) of Egypt is the Nile, and not the brook (נחל) of Egypt (Num 34:5), i.e., the boundary stream Rhinocorura, Wady el Arish. According to the oratorical character of the promise, the two large rivers, the Nile and the Euphrates, are mentioned as the boundaries within which the seed of Abram would possess the promised land, the exact limits of which are more minutely described in the list of the
