|Easton's Bible Dictionary|
An Egyptian king, the son and successor of Psammetichus (B.C. 610-594), the contemporary of Josiah, king of Judah. For some reason he proclaimed war against the king of Assyria. He led forth a powerful army and marched northward, but was met by the king of Judah at Megiddo, who refused him a passage through his territory. Here a fierce battle was fought and Josiah was slain (2 Chronicles 35:20-24). Possibly, as some suppose, Necho may have brought his army by sea to some port to the north of Dor (Comp. Joshua 11:2; 12:23), a Phoenician town at no great distance from Megiddo. After this battle Necho marched on to Carchemish (q.v.), where he met and conquered the Assyrian army, and thus all the Syrian provinces, including Palestine, came under his dominion.
On his return march he deposed Jehoahaz, who had succeeded his father Josiah, and made Eliakim, Josiah's eldest son, whose name he changed into Jehoiakim, king. Jehoahaz he carried down into Egypt, where he died (2 Kings 23:31; 2 Chronicles 36:1-4). Four years after this conquest Necho again marched to the Euphrates; but here he was met and his army routed by the Chaldeans (B.C. 606) under Nebuchadnezzar, who drove the Egyptians back, and took from them all the territory they had conquered, from the Euphrates unto the "river of Egypt" (Jeremiah 46:2; 2 Kings 24:7, 8). Soon after this Necho died, and was succeeded by his son, Psammetichus II. (see NEBUCHADNEZZAR.)
Int. Standard Bible Encyclopedia
Necho (3 Occurrences)
2 Chronicles 35:20 After all this, when Josiah had prepared the temple, Necho king of Egypt came up to fight against Charchemish by Euphrates: and Josiah went out against him. (KJV DBY WBS YLT)
2 Chronicles 35:22 Nevertheless Josiah would not turn his face from him, but disguised himself, that he might fight with him, and hearkened not unto the words of Necho from the mouth of God, and came to fight in the valley of Megiddo. (KJV DBY WBS YLT)
2 Chronicles 36:4 And the king of Egypt made Eliakim his brother king over Judah and Jerusalem, and turned his name to Jehoiakim. And Necho took Jehoahaz his brother, and carried him to Egypt. (KJV DBY WBS YLT)