Commentaries
35:20-27 The Scripture does not condemn Josiah's conduct in opposing Pharaoh. Yet Josiah seems to deserve blame for not inquiring of the Lord after he was warned; his death might be a rebuke for his rashness, but it was a judgment on a hypocritical and wicked people. He that lives a life of repentance, faith, and obedience, cannot be affected by the sudden manner in which he is removed. The people lamented him. Many mourn over sufferings, who will not forsake the sins that caused God to send them. Yet this alone can turn away judgments. If we blame Josiah's conduct, we should be watchful, lest we be cut down in a way dishonourable to our profession.
21, 22. But he sent ambassadors … What have I to do with thee, thou king of Judah?—Not wishing to spend time, or strength in vain, Necho informed the king of Judah that he had no intention of molesting the Jews; that his expedition was directed solely against his old Assyrian enemy; and that he had undertaken it by an express commission from God. Commentators are not agreed whether it was really a divine commission given him through Jeremiah, or whether he merely used the name of God as an authority that Josiah would not refuse to obey. As he could not know the truth of Necho's declaration, Josiah did not sin in opposing him; or, if he sinned at all, it was a sin of ignorance. The engagement took place. Josiah was mortally wounded [2Ch 35:23].