"Many have strong feelings against Brother -----. They accuse him of unkindness, harshness, and severity. But some of the very ones who would condemn him are no less guilty themselves. He that is without sin among you, let him first cast a stone.” Brother ----- has not always moved wisely, and he has been hard to convince where he has not taken the best course. He has not been as willing to receive counsel, and to modify his methods of instruction and his manner of dealing with his students, as he should have been. But those who would condemn him because of his defects could in their turn be justly condemned. Every man has his peculiar defects of character. One may be free from the weakness which he sees in his brother, yet he may at the same time have faults which are far more grievous in the sight of God. 5T 35.2"
"So when they continued asking him, he lifted up himself, and said unto them, He that is without sin among you, let him first cast a stone at her."
EGW directly quotes and applies the verse from John 8:7 in a similar context of judging others.