Ezekiel 18:19-20 says that a son shall not bear the guilt of the father because the son has done what is lawful and right, and has kept all God's statutes and observed them. The inverse of this statement is therefore also true that: if the son of a sinful father (or mother indeed) is also living in sin then it is possible for the son to bear the guilt of the father in addition to punishment for the son's own sins.