Samaritan Schism (sources)

Book of Nehemiah

Neh 13:28 (NRSV) -- And one of the sons of Jehoiada, son of the high priest Eliashib, was the son-in-law of Sanballat the Horonite; I chased him away from me.

Josephus, Antiquities

Ant XI 7,2 -- 2. Now when John had departed this life, his son Jaddua succeeded in the high priesthood. He had a brother, whose name was Manasseh. Now there was one Sanballat, who was sent by Darius, the last king [of Persia], into Samaria. He was a Cutheam by birth; of which stock were the Samaritans also. This man knew that the city Jerusalem was a famous city, and that their kings had given a great deal of trouble to the Assyrians, and the people of Celesyria; so that he willingly gave his daughter, whose name was Nicaso, in marriage to Manasseh, as thinking this alliance by marriage would be a pledge and security that the nation of the Jews should continue their good-will to him.

Ant XI 8,2 -- 2. But the elders of Jerusalem being very uneasy that the brother of Jaddua the high priest, though married to a foreigner, should be a partner with him in the high priesthood, quarreled with him; for they esteemed this man’s marriage a step to such as should be desirous of transgressing about the marriage of [strange] wives, and that this would be the beginning of a mutual society with foreigners, although the offense of some about marriages, and their having married wives that were not of their own country, had been an occasion of their former captivity, and of the miseries they then underwent; so they commanded Manasseh to divorce his wife, or not to approach the altar, the high priest himself joining with the people in their indignation against his brother, and driving him away from the altar. Whereupon Manasseh came to his father-in-law, Sanballat, and told him, that although he loved his daughter Nicaso, yet was he not willing to be deprived of his sacerdotal dignity on her account, which was the principal dignity in their nation, and always continued in the same family. And then Sanballat promised him not only to preserve to him the honor of his priesthood, but to procure for him the power and dignity of a high priest, and would make him governor of all the places he himself now ruled, if he would keep his daughter for his wife. He also told him further, that he would build him a temple like that at Jerusalem, upon Mount Gerizzini, which is the highest of all the mountains that are in Samaria; and he promised that he would do this with the approbation of Darius the king. Manasseh was elevated with these promises, and staid with Sanballat, upon a supposal that he should gain a high priesthood, as bestowed on him by Darius, for it happened that Sanballat was then in years. But there was now a great disturbance among the people of Jerusalem, because many of those priests and Levites were entangled in such matches; for they all revolted to Manasseh, and Sanballat afforded them money, and divided among them land for tillage, and habitations also, and all this in order every way to gratify his son-in-law.