"Moses felt the importance of the great work committed to him as no other man had ever felt it. He realized his own weakness, and he made God his counselor. Aaron esteemed himself more highly, and trusted less in God. He had failed when entrusted with responsibility, giving evidence of the weakness of his character by his base compliance in the matter of the idolatrous worship at Sinai. But Miriam and Aaron, blinded by jealousy and ambition, lost sight of this. Aaron had been highly honored by God in the appointment of his family to the sacred office of the priesthood; yet even this now added to the desire for self-exaltation. “And they said, Hath the Lord indeed spoken only by Moses? hath He not spoken also by us?” Regarding themselves as equally favored by God, they felt that they were entitled to the same position and authority. PP 383.1"
"Trust in the Lord with all thine heart; and lean not unto thine own understanding. In all thy ways acknowledge him, and he shall direct thy paths."
The EGW passage contrasts Moses' reliance on God with Aaron's self-reliance, echoing the principle of trusting in God rather than one's own understanding as stated in Proverbs 3:5-6.
"Yielding to the spirit of dissatisfaction, Miriam found cause of complaint in events that God had especially overruled. The marriage of Moses had been displeasing to her. That he should choose a woman of another nation, instead of taking a wife from among the Hebrews, was an offense to her family and national pride. Zipporah was treated with ill-disguised contempt. PP 383.2"
"And Miriam and Aaron spake against Moses because of the Ethiopian woman whom he had married: for he had married an Ethiopian woman."
The EGW passage directly refers to the event described in Numbers 12:1, where Miriam and Aaron speak against Moses because of his marriage to an Ethiopian woman. This is a clear and intentional allusion.
"Though called a “Cushite woman” ( Numbers 12:1 , R.V.), the wife of Moses was a Midianite, and thus a descendant of Abraham. In personal appearance she differed from the Hebrews in being of a somewhat darker complexion. Though not an Israelite, Zipporah was a worshiper of the true God. She was of a timid, retiring disposition, gentle and affectionate, and greatly distressed at the sight of suffering; and it was for this reason that Moses, when on the way to Egypt, had consented to her return to Midian. He desired to spare her the pain of witnessing the judgments that were to fall on the Egyptians. PP 383.3"
"And Miriam and Aaron spake against Moses because of the Ethiopian woman whom he had married: for he had married an Ethiopian woman."
Ellen White directly references Numbers 12:1 in this passage.