Reference

Genesis 21:27

And Abraham took sheep and oxen, and gave them unto Abimelech; and both of them made a covenant.
25

And Abraham reproved Abimelech because of a well of water, which Abimelech’s servants had violently taken away.

26

And Abimelech said, I wot not who hath done this thing: neither didst thou tell me, neither yet heard I of it, but to day.

27

And Abraham took sheep and oxen, and gave them unto Abimelech; and both of them made a covenant.

28

And Abraham set seven ewe lambs of the flock by themselves.

29

And Abimelech said unto Abraham, What mean these seven ewe lambs which thou hast set by themselves?

Counter-Arguments

The strongest case that this verse does not belong in this theme.

Israel as Distinct

The verse describes a covenant between Abraham and Abimelech, a Philistine king. It does not mention Israel as a distinct entity, nor does it refer to specific promises, a land covenant, or a future prophetic role for Israel separate from the Church. The covenant is a personal agreement between two individuals concerning a well, not a national or theological distinction.