“One of the sons of Jehoiada, son of the high priest Eliashib, was the son-in-law of Sanballat the Horonite. Therefore, I chased him from me.
O my God,
Because they have defiled the priesthood
The covenant of the priesthood and the Levites.’”
Nehemiah specifically chased the son of Jehoiada, the grandson of the high priest Eliashib, because he had married a non-Jewish person. It does not say if he inflicted physical punishment on him. Certainly, he had defiled the priesthood. Once again, he has a little prayer to God to remember the covenant about the defilement of the priesthood.