2 Kings 17

And it may be worth while to relate from what sources the Samaritans were made up; since all this country is called Samaria. Whence then did they receive their name? The mountain was called "Somor" from its owner, as also Esaias saith, "and the head of Ephraim is Somoron;" but the inhabitants were termed not "Samaritans" but "Israelites." But as time went on, they offended God, and in the reign of Pekah, Tiglath-Pileser came up, and took many cities, and set upon Elah, and having slain him, gave the kingdom to Hoshea. Against him Shalmaneser came and took other cities, and made them subject and tributary. At first he yielded, but afterwards he revolted from the Assyrian rule, and betook himself to the alliance of the Ethiopians. The Assyrian learnt this, and having made war upon them and destroyed their cities, he no longer allowed the nation to remain there, because he had such suspicions that they would revolt.

But he carried them to Babylon and to the Medes, and having brought thence nations from divers places, planted them in Samaria, that his dominion for the future might be sure, his own people occupying the place. After this, God, desiring to show that He had not given up the Jews through weakness, but because of the sins of those who were given up, sent lions against the foreigners, who ravaged all their nation. These things were reported to the king, and he sent a priest to deliver to them the laws of God. Still not even so did they desist wholly from their impiety, but only by halves. But as time went on, they in turn abandoned their idols, and worshiped God. And when things were in this state, the Jews having returned, ever after entertained a jealous feeling towards them as strangers and enemies, and called them from the name of the mountain, "Samaritans."