NET
20 All the people of the land celebrated, for the city had rest now that they had killed Athaliah with the sword in the royal palace.
Darby
20 And all the people of the land rejoiced, and the city was quiet; and they had slain Athaliah with the sword [beside] the king's house.
KJV
20 And all the people of the land rejoiced, and the city was in quiet: and they slew Athaliah with the sword [beside] the king's house.