"Christ has plainly taught that those who persist in open sin must be separated from the church, but He has not committed to us the work of judging character and motive. He knows our nature too well to entrust this work to us. Should we try to uproot from the church those whom we suppose to be spurious Christians, we should be sure to make mistakes. Often we regard as hopeless subjects the very ones whom Christ is drawing to Himself. Were we to deal with these souls according to our imperfect judgment, it would perhaps extinguish their last hope. Many who think themselves Christians will at last be found wanting. Many will be in heaven who their neighbors supposed would never enter there. Man judges from appearance, but God judges the heart. The tares and the wheat are to grow together until the harvest; and the harvest is the end of probationary time. COL 71.3"
"Judge not, that ye be not judged."
EGW's statement about not judging character and motive aligns with the principle of 'judge not, that ye be not judged.'
"But he said, Nay; lest while ye gather up the tares, ye root up also the wheat with them."
EGW directly references the parable of the tares and the wheat, specifically the concern about uprooting the wheat while gathering the tares.