"“Everyone who is angry with his brother shall be in danger of the judgment.”— Matthew 5:22 , R. V. Through Moses the Lord had said, “Thou shalt not hate thy brother in thine heart.... Thou shalt not avenge, nor bear any grudge against the children of thy people, but thou shalt love thy neighbor as thyself.” Leviticus 19:17, 18 . The truths which Christ presented were the same that had been taught by the prophets, but they had become obscured through hardness of heart and love of sin. MB 55"
"But I say unto you, That whosoever is angry with his brother without a cause shall be in danger of the judgment: and whosoever shall say to his brother, Raca, shall be in danger of the council: but whosoever shall say, Thou fool, shall be in danger of hell fire."
Ellen White directly references Matthew 5:22 in this passage.