"“Then said Hezekiah to Isaiah, Good is the word of the Lord which thou hast spoken.” Isaiah 39:3-8 . PK 347.1"
"Then came Isaiah the prophet unto king Hezekiah, and said unto him, What said these men? and from whence came they unto thee? And Hezekiah said, They are come from a far country unto me, even from Babylon. Then said he, What have they seen in thine house? And Hezekiah answered, All that is in mine house have they seen: there is nothing among my treasures that I have not shewed them. Then said Isaiah to Hezekiah, Hear the word of the Lord of hosts: Behold, the days come, that all that is in thine house, and that which thy fathers have laid up in store until this day, shall be carried to Babylon: nothing shall be left, saith the Lord. And of thy sons that shall issue from thee, which thou shalt beget, shall they take away; and they shall be eunuchs in the palace of the king of Babylon. Then said Hezekiah to Isaiah, Good is the word of the Lord which thou hast spoken. He said moreover, For there shall be peace and truth in my days."
Ellen White directly references Isaiah 39:3-8 in this passage.
"Filled with remorse, “Hezekiah humbled himself for the pride of his heart, both he and the inhabitants of Jerusalem, so that the wrath of the Lord came not upon them in the days of Hezekiah.” 2 Chronicles 32:26 . But the evil seed had been sown and in time was to spring up and yield a harvest of desolation and woe. During his remaining years the king of Judah was to have much prosperity because of his steadfast purpose to redeem the past and to bring honor to the name of the God whom he served; yet his faith was to be severely tried, and he was to learn that only by putting his trust fully in Jehovah could he hope to triumph over the powers of darkness that were plotting his ruin and the utter destruction of his people. PK 347.2"
"Notwithstanding Hezekiah humbled himself for the pride of his heart, both he and the inhabitants of Jerusalem, so that the wrath of the Lord came not upon them in the days of Hezekiah."
Ellen White directly references 2 Chronicles 32:26 in this passage.
"The story of Hezekiah's failure to prove true to his trust at the time of the visit of the ambassadors is fraught with an important lesson for all. Far more than we do, we need to speak of the precious chapters in our experience, of the mercy and loving-kindness of God, of the matchless depths of the Saviour's love. When mind and heart are filled with the love of God, it will not be difficult to impart that which enters into the spiritual life. Great thoughts, noble aspirations, clear perceptions of truth, unselfish purposes, yearnings for piety and holiness, will find expression in words that reveal the character of the heart treasure. PK 347.3"
"I will remember the works of the Lord: surely I will remember thy wonders of old."
Both passages emphasize the importance of remembering and sharing God's works and wonders. The EGW passage expands on this theme in the context of Hezekiah's failure, while Psalm 77:11 is a general statement of intent.