2 Kings 20:19 - Joseph Benson’s Commentary on the Old and New Testaments

Good is the word of the Lord I heartily submit to this sentence, as being most just and merciful. All true penitents, when they are under divine rebukes, call them not only just, but good: not only submit to, but accept of the punishment of their iniquity. So Hezekiah did, and by this it appeared he was indeed humbled for the pride of his heart. Undoubtedly it was most grievous to him to hear of the calamities that should befall his children; but, notwithstanding, with a truly penitent and pious mind, he pronounced the sentence good, as coming from that Being who not only does nothing but what is right, but nothing but what is tempered with mercy and goodness, even when he punishes; and therefore a resigned submission to his will is highly reasonable and proper, and our absolute duty.