Matthew Henry on 2 Chronicles 35:20–end
It was thirteen years from Josiah's famous passover to his death. During this time, we may hope, thing went well in his kingdom, that he prospered, and religion flourished; yet we are not entertained with the pleasing account of those years, but they are passed over in silence, because the people, for all this, were not turned from the love of their sins nor God from the fierceness of his anger. The next news therefore we hear of Josiah is that he is cut off in the midst of his days and usefulness, before he is full forty years old. We had this sad story, Kg2 23:29, Kg2 23:30. Here it is somewhat more largely related. That appears here, more than did there, which reflects such blame on Josia…
Read the whole note in the consoleJamieson-Fausset-Brown on 2 Chronicles 35:21
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 to…
Read the whole note in the consoleAdam Clarke on 2 Chronicles 35:21
God commanded me to make haste - The Targum gives a curious turn to this and the following verse: "My idol commanded me to make haste; refrain therefore from me and my idol which is with me, that he betray thee not. When he heard him mention his idol, he would not go back; and he hearkened not unto the words of Necho, which he spake concerning his idol." Here is the rabbinical excuse for the conduct of Josiah.
John Gill