Fatherless and motherless children are thrown into the arms of the church, and Christ says to His followers: Take these destitute children, bring them up for Me, and ye shall receive your wages. I have seen much selfishness exhibited in these things. Unless there is some special evidence that they themselves are to be benefited by adopting into their family those who need homes, some turn away and answer: No. They do not seem to know or care whether such are saved or lost. That, they think, is not their business. With Cain they say: “Am I my brother's keeper?” They are not willing to be put to inconvenience or to make any sacrifice for the orphans, and they indifferently thrust such ones into the arms of the world, who are sometimes more willing to receive them than are these professed Christians. In the day of God, inquiry will be made for those whom Heaven gave them the opportunity of saving. But they wished to be excused, and would not engage in the good work unless they could make …
"And the Lord said unto Cain, Where is Abel thy brother? And he said, I know not: Am I my brother’s keeper?"
EGW directly quotes and applies the Cain and Abel story to the situation of neglecting orphans.
"not thyself from thine own flesh? Then shall thy light break forth as the morning, and thine health shall spring forth speedily: and thy righteousness shall go before thee; the glory of the Lord shall be thy rearward. Then shalt thou call, and the Lord shall answer; thou shalt cry, and He shall say, Here I am. If thou take away from the midst of thee the yoke, the putting forth of the finger, and speaking vanity; and if thou draw out thy soul to the hungry, and satisfy the afflicted soul; then shall thy light rise in obscurity, and thy darkness be as the noonday: and the Lord shall guide thee continually, and satisfy thy soul in drought, and make fat thy bones: and thou shalt be like a watered garden, and like a spring of water, whose waters fail not.” 2T 33.2"
"Is it not to deal thy bread to the hungry, and that thou bring the poor that are cast out to thy house? when thou seest the naked, that thou cover him; and that thou hide not thyself from thine own flesh?"
The EGW passage directly quotes Isaiah 58:7, making it an explicit allusion.