"Whatever the character of the offense, this does not change the plan that God has made for the settlement of misunderstandings and personal injuries. Speaking alone and in the spirit of Christ to the one who is in fault, will often remove the difficulty. Go to the erring one, with a heart filled with Christ's love and sympathy, and seek to adjust the matter. Reason with him calmly and quietly. Let no angry words escape your lips. Speak in a way that will appeal to his better judgment. Remember the words, “He which converteth the sinner from the error of his way shall save a soul from death, and shall hide a multitude of sins.” [ James 5:20 .] GW 499.2"
"Let him know, that he which converteth the sinner from the error of his way shall save a soul from death, and shall hide a multitude of sins."
Ellen White directly references James 5:20 in this passage.
"God binds heart to heart; and there is music in heaven over the union brought about. GW 499.4"
"Behold, how good and how pleasant it is for brethren to dwell together in unity!"
Both passages highlight the beauty and harmony of unity among believers. While EGW adds the 'music in heaven' imagery, the core theme of unity and its positive impact is shared with Psalm 133:1.