And I contended with them,.... Argued with them, faithfully admonished them, and sharply reproved them:
and cursed them; assuring them that the curse of God would come upon them, unless they repented. Aben Ezra interprets it of excommunicating them, either with "Cherem" or "Niddui", which were two sorts of excommunication among the Jews; but it is a question whether as yet those were used by them:
and smote certain of them; ordered them to be beaten with rods or scourges, as transgressors of the law:
and plucked off their hair; or ordered it to be plucked off by the executioner that smote them; which sort of punishment, as it was painful, it was disgraceful and ignominious, see Isaiah 1:6,
and made them swear by God, saying, ye shall not give your daughters unto their sons, nor take their daughters unto your sons, or for yourselves; not intermarry with them; this they had sworn to before,