1)
What was weighed on a scale?
1.
Rashi: You were weighed, and you were lacking on every side.
2.
Malbim (24, 27): Hashem weighed whether to follow the verse of 70 years of Malchus Bavel, or the verse that the nations will serve also Nebuchadnetzar's grandson. His merits and liabilities were weighed. The liability outweighed, due to disgracing Klei Beis Hashem.
