Then Amaziah sent messengers to Jehoash the son of Jehoahaz the
son of Jehu king of Israel
The occasion of it was this, when Amaziah dismissed the hired soldiers of Israel they were displeased, and fell upon the cities of Judea from Samaria to Bethhoron, slew 3000 men, and took much spoil, ( 2 Chronicles 25:13 ) , wherefore, when Amaziah returned from the slaughter of the Edomites, being elated with his victories, he sent the following message to the king of Israel, in order to revenge the injuries his soldiers had done; and perhaps retaining an old grudge for what Jehu, the grandfather of the king of Israel, had done to his ancestors, and it may be in hope of reducing the ten tribes to obedience to the house of David:
saying, come, let us look one another in the face;
that is, in battle, as the Targum adds; it was a challenge to meet him in the field of battle, and fight with him, and try each other's courage, and see who was the best man.