Charles Ellicott Commentary Isaiah 61:2

"to proclaim the year of Jehovah`s favor, and the day of vengeance of our God; to comfort all that mourn;" — Isaiah 61:2 (ASV)

To proclaim the acceptable year ... —The Year of Jubilee is still, perhaps, in the prophet’s thoughts; but the chief point of the promise is the contrast between the “year” of favour and the single “day” of vengeance, reminding us of the like contrast in Exodus 20:5-6.