And in the book — The word “and” is not in the original text. The meaning is that the acts were recorded in the prophecy of Isaiah, wh…

Now the rest of the acts. — See 2 Kings 20:20–21.

And his goodness. — Hi…

Now the rest of the acts of Hezekiah, and his goodness
His acts of piety and liberality:

God left Hezekiah to himself, so that by this trial and his weakness in it, what was in his heart might be known: that he was not as perfect in gra…