2 Chronicles 32:1

After these things, and the establishment thereof An emphatical preface, signifying, that notwithstanding all his zeal for God, God saw fit to exercise him with a sore trial. And God ordered it at this time, that he might have an opportunity of showing himself strong on the behalf of his returning people. It is possible we may be in the way of our duty, and yet meet with trouble and danger. God permits this, for the trial of our confidence in him, and the manifestation of his care over us. It was well ordered, however, by the Divine Providence, that this trouble did not come upon Hezekiah and his kingdom till the reformation was finished and established; for, if it had come sooner, it might, and probably would, have put a stop to that good work. Sennacherib, king of Assyria, came, and entered into Judah He was now, as Nebuchadnezzar was afterward, the terror, and scourge, and great oppressor of that part of the world, who aimed to raise a boundless monarchy for himself, upon the ruins of all his neighbours. His predecessor, Shalmaneser, had lately made himself master of the kingdom of Israel, and carried the ten tribes captive; and Sennacherib thought, in like manner, to win Judah to himself. Thus pride and ambition put men upon grasping at universal dominion.