4. Lift up … eyes—Jerusalem is addressed as a female with eyes cast down from grief.
all they … they—The Gentile peoples come together to bring back the dispersed Hebrews, restore their city, and worship Jehovah with offerings.
nursed at thy side—rather "carried at thy side." It is the custom in the East to carry the children astride on the hip, with the arms around the body (Isa 66:12).