"David gave Solomon minute directions for building the temple, with patterns of every part, and of all its instruments of service, as had been revealed to him by divine inspiration. Solomon was still young, and shrank from the weighty responsibilities that would devolve upon him in the erection of the temple and in the government of God's people. David said to his son, “Be strong and of good courage, and do it: fear not, nor be dismayed, for the Lord God, even my God, will be with thee; He will not fail thee, nor forsake thee.” PP 751.1"
"And Moses called unto Joshua, and said unto him in the sight of all Israel, Be strong and of a good courage: for thou must go with this people unto the land which the Lord hath sworn unto their fathers to give them; and thou shalt cause them to inherit it. And the Lord, he it is that doth go before thee; he will be with thee, he will not fail thee, neither forsake thee: fear not, neither be dismayed."
EGW directly quotes the phrase "Be strong and of good courage...fear not, nor be dismayed, for the Lord God, even my God, will be with thee; He will not fail thee, nor forsake thee." This is a clear echo of the sentiment expressed in Deuteronomy 31:7-8, even if the context is different (Moses to Joshua vs. David to Solomon).
"Again David appealed to the congregation: “Solomon my son, whom alone God hath chosen, is yet young and tender, and the work is great: for the palace is not for man, but for the Lord God.” He said, “I have prepared with all my might for the house of my God,” and he went on to enumerate the materials he had gathered. More than this, he said, “I have set my affection to the house of my God, I have of mine own proper good, of gold and silver, which I have given to the house of my God, over and above all that I have prepared for the holy house, even three thousand talents of gold, of the gold of Ophir, and seven thousand talents of refined silver, to overlay the walls of the houses withal.” “Who then,” he asked of the assembled multitude that had brought their liberal gifts—“who then is willing to consecrate his service this day unto the Lord?” PP 751.2"
"Furthermore David the king said unto all the congregation, Solomon my son, whom alone God hath chosen, is yet young and tender, and the work is great: for the palace is not for man, but for the Lord God. Now I have prepared with all my might for the house of my God the gold for things to be made of gold, and the silver for things of silver, and the brass for things of brass, the iron for things of iron, and wood for things of wood; onyx stones, and stones to be set, glistering stones, and of divers colours, and all manner of precious stones, and marble stones in abundance. Moreover, because I have set my affection to the house of my God, I have of mine own proper good, of gold and silver, which I have given to the house of my God, over and above all that I have prepared for the holy house, Even three thousand talents of gold, of the gold of Ophir, and seven thousand talents of refined silver, to overlay the walls of the houses withal: The gold for things of gold, and the silver for things of silver, and for all manner of work to be made by the hands of artificers. And who then is willing to consecrate his service this day unto the Lord?"
The EGW passage directly quotes and paraphrases 1 Chronicles 29:1-5, including the mention of Solomon's youth, the greatness of the work, David's preparations, and the call for others to consecrate their service. This is a clear and intentional reference.
"and the captains of thousands and of hundreds, with the rulers of the king's work, offered willingly, and gave, for the service of the house of God, of gold five thousand talents and ten thousand drams, and of silver ten thousand talents, and of brass eighteen thousand talents, and one hundred thousand talents of iron. And they with whom precious stones were found gave them to the treasure of the house of the Lord.... Then the people rejoiced, for that they offered willingly, because with perfect heart they offered willingly to the Lord: and David the king also rejoiced with great joy. PP 751.3"
"Then the people rejoiced, for that they offered willingly, because with perfect heart they offered willingly to the Lord: and David the king also rejoiced with great joy."
EGW quotes and paraphrases 1 Chronicles 29:9, focusing on the people's joyful and willing offering and David's rejoicing.
"And they came, every one whose heart stirred him up, and every one whom his spirit made willing, and they brought the Lord’s offering to the work of the tabernacle of the congregation, and for all his service, and for the holy garments. And they came, both men and women, as many as were willing hearted, and brought bracelets, and earrings, and rings, and tablets, all jewels of gold: and every man that offered offered an offering of gold unto the Lord."
Both passages describe the people willingly offering materials for the construction of a sacred space. The emphasis on willing hearts and generous contributions connects the two passages thematically.