Reference

Numbers 9:2

Let the children of Israel also keep the passover at his appointed season.
1

And the Lord spake unto Moses in the wilderness of Sinai, in the first month of the second year after they were come out of the land of Egypt, saying,

2

Let the children of Israel also keep the passover at his appointed season.

3

In the fourteenth day of this month, at even, ye shall keep it in his appointed season: according to all the rites of it, and according to all the ceremonies thereof, shall ye keep it.

4

And Moses spake unto the children of Israel, that they should keep the passover.

Counter-Arguments

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

Israel-Specific Promises

The verse is a command for Israel to observe the Passover, not a promise made to them. While the Passover is specific to Israel, this verse is about their obedience to a command, not a promise given by God.