"Feeling that his own heart was not wholly right with God, David, seeing the stroke upon Uzzah, had feared the ark, lest some sin on his part should bring judgments upon him. But Obed-edom, though he rejoiced with trembling, welcomed the sacred symbol as the pledge of God's favor to the obedient. The attention of all Israel was now directed to the Gittite and his household; all watched to see how it would fare with them. “And the Lord blessed Obed-edom, and all his household.” PP 706.1"
"And the ark of the Lord continued in the house of Obed–edom the Gittite three months: and the Lord blessed Obed–edom, and all his household."
The EGW passage directly quotes 2 Samuel 6:11 and elaborates on the context and significance of Obed-edom's blessing.
"Upon David the divine rebuke accomplished its work. He was led to realize as he had never realized before the sacredness of the law of God and the necessity of strict obedience. The favor shown to the house of Obed- edom led David again to hope that the ark might bring a blessing to him and to his people. PP 706.2"
"And he smote the men of Beth–shemesh, because they had looked into the ark of the Lord, even he smote of the people fifty thousand and threescore and ten men: and the people lamented, because the Lord had smitten many of the people with a great slaughter."
The EGW passage describes David's reflection on the sacredness of God's law after the incident with Uzzah and the ark. The reference to Obed-edom and the blessing he received is contrasted with the disaster at Beth-shemesh, creating a thematic parallel about approaching God with reverence and obedience.
At the end of three months he resolved to make another attempt to remove the ark, and he now gave earnest heed to carry out in every particular the directions of the Lord. Again the chief men of the nation were summoned, and a vast assemblage gathered about the dwelling place of the Gittite. With reverent care the ark was now placed upon the shoulders of men of divine appointment, the multitude fell into line, and with trembling hearts the vast procession again set forth. After advancing six paces the trumpet sounded a halt. By David's direction sacrifices of “oxen and fatlings” were to be offered. Rejoicing now took the place of trembling and terror. The king had laid aside his royal robes and had attired himself in a plain linen ephod, such as was worn by the priests. He did not by this act signify that he assumed priestly functions, for the ephod was sometimes worn by others besides the priests. But in this holy service he would take his place as, before God, on an equality with his…
"For because ye did it not at the first, the Lord our God made a breach upon us, for that we sought him not after the due order."
The EGW passage directly illustrates the principle stated in 1 Chronicles 15:13: that seeking God 'after the due order' is essential. David's initial failure and subsequent correction demonstrate this principle.