Jeremiah 25:28
And it shall be, if they refuse to take the cup at thine hand to drink, then shalt thou say unto them, Thus saith the Lord of hosts; Ye shall certainly drink.
Cross-reference
Jeremiah 25:17 immediately shows Jeremiah carrying out the command — drinking begins with Jerusalem.
Jeremiah 49:12 explicitly applies the cup to Edom — if the undeserving drink, none can escape.
Jeremiah 4:28 declares God will not relent from His spoken judgment — reinforcing the irreversible command to drink the cup here.
Jeremiah 51:29 confirms God's purposes against Babylon stand — similarly, the cup judgment against all nations is fixed and unchangeable.
Jeremiah 27:8 warns that refusing to serve Babylon brings punishment — parallels refusing the cup.
Isaiah 14:24-27 stresses God's unchangeable purpose — no one can annul it, just as no one can refuse the cup here.
Psalm 75:8 presents the same cup of foaming wine that the wicked must drain — a vivid parallel to God's wrath.