Isaiah 61:5 - Ellicott's Commentary On The Whole Bible

Strangers shall stand... — i.e., like servants waiting for their master’s orders. The implied thought of the whole passage is, as in the next verse, that all Israel is raised to the dignity of a priestly caste, leaving the rough work of the world to be done by foreigners, who stood on a lower level. (Comp. Sir. 38:31-34.)