And he did what was right in the sight of Jehovah, according to all that David his father had done.
He removed the high places, and broke the columns, and cut down the Asherahs, and broke in pieces the serpent of brass that Moses had made; for to those days the children of Israel burned incense to it: and he called it Nehushtan.
References for 2 Kings 18:4
He trusted in Jehovah the God of Israel; so that after him was none like him among all the kings of Judah, nor [among any] that were before him.
And he clave to Jehovah, and did not turn aside from following him, but kept his commandments, which Jehovah commanded Moses.
And Jehovah was with him; he prospered whithersoever he went forth. And he rebelled against the king of Assyria, and served him not.
References for 2 Kings 18:7
He smote the Philistines unto Gazah and its borders, from the watchmen's tower to the fortified city.
And it came to pass in the fourth year of king Hezekiah, which was the seventh year of Hoshea the son of Elah, king of Israel, [that] Shalmaneser king of Assyria came up against Samaria and besieged it.
And at the end of three years they took it; in the sixth year of Hezekiah, that is, the ninth year of Hoshea king of Israel, Samaria was taken.
And the king of Assyria carried away Israel to Assyria, and settled them in Halah and by the Habor, the river of Gozan, and in the cities of the Medes;
because they hearkened not to the voice of Jehovah their God, but transgressed his covenant, all that Moses the servant of Jehovah commanded; and they would not hear nor do it.
And in the fourteenth year of king Hezekiah, Sennacherib king of Assyria came up against all the fortified cities of Judah, and took them.