Isa 4:1-6.
that day—the calamitous period described in previous chapter.
seven—indefinite number among the Jews. So many men would be slain, that there would be very many more women than men; for example, seven women, contrary to their natural bashfulness, would sue to (equivalent to "take hold of," Isa 3:6) one man to marry them.
eat … own bread—foregoing the privileges, which the law (Ex 21:10) gives to wives, when a man has more than one.
reproach—of being unwedded and childless; especially felt among the Jews, who were looking for "the seed of the woman," Jesus Christ, described in Isa 4:2; Isa 54:1, 4; Lu 1:25.