In Jeremiah 4:5, the command to blow the trumpet is given — the very sound that 4:21 laments hearing.

In Jeremiah 4:14, Jerusalem is called to wash its heart from wickedness — the repentance needed to stop the judgment lamented in 4:21.

Jeremiah 4:19 echoes the same anguish and trumpet alarm — immediate context, intensifying the lament.

Jeremiah 47:6 uses the same 'how long?' cry — the sword of the LORD, mirroring the prophet's lament over war.

Jeremiah 6:1 also sounds the trumpet alarm for disaster from the north — same prophetic warning.

Jeremiah 42:14 echoes the same war imagery — the people flee to Egypt to escape the trumpet and war that the prophet laments here.

Numbers 10:9 commands trumpets for deliverance in war — here the trumpet signals judgment, contrasting hope with despair.