Reference

Jeremiah 8:17

For, behold, I will send serpents, cockatrices, among you, which will not be charmed, and they shall bite you, saith the Lord.
15

We looked for peace, but no good came; and for a time of health, and behold trouble!

16

The snorting of his horses was heard from Dan: the whole land trembled at the sound of the neighing of his strong ones; for they are come, and have devoured the land, and all that is in it; the city, and those that dwell therein.

17

For, behold, I will send serpents, cockatrices, among you, which will not be charmed, and they shall bite you, saith the Lord.

18

When I would comfort myself against sorrow, my heart is faint in me.

19

Behold the voice of the cry of the daughter of my people because of them that dwell in a far country: Is not the Lord in Zion? is not her king in her? Why have they provoked me to anger with their graven images, and with strange vanities?

Counter-Arguments

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

Present / Ongoing Fulfillment

The verse describes a specific, impending judgment on ancient Israel using vivid, immediate language ("I will send," "they shall bite you"), which strongly suggests a past or near-future fulfillment within that historical context, rather than an ongoing, general fulfillment throughout the church age.