Charles Ellicott Commentary Isaiah 52:2

"Shake thyself from the dust; arise, sit [on thy throne], O Jerusalem: loose thyself from the bonds of thy neck, O captive daughter of Zion." — Isaiah 52:2 (ASV)

Sit down ... —As Jerusalem has risen from the dust, the “sitting” here implies a throne, and so stands in contrast with that of Babylon in Isaiah 47:1.