Compare 2 Kings 17:24-28 notes.

Since the days - Esar-haddon reigned from 681-668 B.C. Thus, the Samaritans speak of what had taken place at least 130 years previously. There appear to have been at least three colonizations of Samaria by the Assyrian kings. The first is mentioned in 2 Kings 17:24. Later in his reign Sargon added to these first settlers an Arabian element. Some 30 or 40 years afterward, Esarhaddon, his grandson, largely augmented the population by colonists drawn especially from the southeast parts of the Empire Ezra 4:10. Thus, the later Samaritans were an exceedingly mixed race.

Let us build with you - We acknowledge the same God, are solicitous for his glory, and will gladly assist you in this work. But that they came with no friendly intention, the context proves.

Then they came to Zerubbabel, and the chief of the fathers,.... These they addressed, as knowing that if they could not prevail with them, they could never succeed in their design; and these were no doubt the principal of the Samaritans that applied:

and said unto them, let us build with you; that is, the temple, they proposed to join with them, and assist them in it; which proposal at first sight might seem very agreeable and welcome, and would have been so had they been sincere, but they were not; they hoped, by getting among them, to have sown discord among them, and disunited them; and so by these or other means to have retarded the building; or if it went forward, that they might have a claim to it as theirs, at least as to set up their own idols in a part of it; the reasons they gave follow:

for we seek your God as ye do; which was false, for they did not worship him alone, but with idols, nor in the same manner as the Jews did:

and we do sacrifice unto him; but even that could not recommend them to the Jews, since they ought not to sacrifice, even to the Lord himself, but at Jerusalem: there is a various reading here; the textual reading is, "we do not sacrifice"; that is, to idols; the marginal reading is, "we sacrifice to him", which we follow; Aben Ezra takes in both, perhaps most rightly; "we do not sacrifice to any other, but to him"; which was also false:

since the days of Esarhaddon, king of Assur, who brought us up hither; to Samaria, from Babylon, and other places; see 2 Kings 17:24.

Then they came to Zerubbabel, and to the chief of the fathers, and said unto them, Let us build with you: for we seek your God, as ye do; and we do sacrifice unto him since the days of Esarhaddon king of Assur, which brought us up hither.

4:2 With you - This they spake not sincerely, but that by this conjunction with them, they might pry into their counsels, and thereby find some matter of accusation against them. We seek - For so they did, though in a mongrel way, 2Kings 17:26, and c. Esarhaddon - Son of Sennacherib, and after him king of Assyria, who brought or sent these persons hither, either, in the day's of Salmanasar, who reigned in Assyria but eight years before Esarhaddon; and so Esarhaddon might be one of his commanders, and the man by whom that colony was sent. Or, in the reign of Esarhaddon, who sent this second colony to strengthen the first.

[1] for we seek

The people of the land sought to hinder the work in three ways:

(1) by seeking to draw the Jews into an unreal union, Ezra 4:3. (cf) 2Ki 17:32.

(2) by "weakening the hands of the people of Judah," Ezra 4:4 i.e, by withholding supplies, etc.; and

(3) by accusations lodged with Ahasuerus and Darius. The first was by far the most subtle and dangerous. The lives of Ezra and Nehemiah afford many illustrations of true separation. 2Cor 6:14-18 2Tim 2:19-21.

2. we seek your God, as ye do; and we do sacrifice unto him since the days of Esar-haddon . which brought us up hither-A very interesting explanation of this passage has been recently obtained from the Assyrian sculptures. On a large cylinder, deposited in the British Museum, there is inscribed a long and perfect copy of the annals of Esar-haddon, in which the details are given of a large deportation of Israelites from Palestine, and a consequent settlement of Babylonian colonists in their place. It is a striking confirmation of the statement made in this passage. Those Assyrian settlers intermarried with the remnant of Israelite women, and their descendants, a mongrel race, went under the name of Samaritans. Though originally idolaters, they were instructed in the knowledge of God, so that they could say, "We seek your God"; but they served Him in a superstitious way of their own (see on [486]2Ki 17:26-34, 41).

4:1-5 Every attempt to revive true religion will stir up the opposition of Satan, and of those in whom he works. The adversaries were the Samaritans, who had been planted in the land of Israel, 2Ki 17. It was plain that they did not mean to unite in the worship of the Lord, according to his word. Let those who discourage a good work, and weaken them that are employed in it, see whose pattern they follow.