John Gill Commentary Ezekiel 23:31

"Thou hast walked in the way of thy sister; therefore will I give her cup into thy hand." — Ezekiel 23:31 (ASV)

You have walked in the way of your sister
Samaria, or the ten tribes of Israel; followed them in their idolatrous practices, were guilty of the same: therefore will I give her cup into your hand ;
the cup of her vengeance, as the Targum; inflict the same punishment on the two tribes as on the ten, and suffer them to be carried captive as they had been.