Isaiah 43:27

Thy first father hath sinned -This is the argument on the side of God, to show that they were neither unjustly punished, nor punished with undue severity. The argument is, that their rulers and teachers had been guilty of crime, and that therefore it was right to bring all this vengeance upon the nation. Various interpretations have been given of the phrase ‘thy first father.’ A slight notice of them will lead to the correct exposition. 1. Many have supposed that Adam is referred to here. Thus Piscator, Calovius, and most of the fathers, understand it; and, among the Jews, Kimchi.