"The reason why church members do not understand this branch of the work is that they are not following the light, walking step by step after their great Leader. The medical missionary work is of God and bears His signature. For this reason let man keep his hands off it and not desire to manage it according to his own ideas. 8T 169.1"
"Then spake Jesus again unto them, saying, I am the light of the world: he that followeth me shall not walk in darkness, but shall have the light of life."
The EGW passage echoes the idea of following Jesus as the light and avoiding darkness by following His guidance, specifically in the context of medical missionary work. The connection is more than just a general theme; it's about following divine guidance.
"Christ declares: “Verily, verily, I say unto you, He that believeth on Me hath everlasting life.... I am the living Bread which came down from heaven: if any man eat of this bread, he shall live forever: and the bread that I will give is My flesh, which I will give for the life of the world.... Whoso eateth My flesh, and drinketh My blood, hath eternal life; and I will raise him up at the last day. For My flesh is meat indeed, and My blood is drink indeed. He that eateth My flesh, and drinketh My blood, dwelleth in Me, and I in him. As the living Father hath sent Me, and I live by the Father: so he that eateth Me, even he shall live by Me.” John 6:47-57 . 8T 169.4"
"Verily, verily, I say unto you, He that believeth on me hath everlasting life. I am that bread of life. Your fathers did eat manna in the wilderness, and are dead. This is the bread which cometh down from heaven, that a man may eat thereof, and not die. I am the living bread which came down from heaven: if any man eat of this bread, he shall live for ever: and the bread that I will give is my flesh, which I will give for the life of the world. The Jews therefore strove among themselves, saying, How can this man give us his flesh to eat? Then Jesus said unto them, Verily, verily, I say unto you, Except ye eat the flesh of the Son of man, and drink his blood, ye have no life in you. Whoso eateth my flesh, and drinketh my blood, hath eternal life; and I will raise him up at the last day. For my flesh is meat indeed, and my blood is drink indeed. He that eateth my flesh, and drinketh my blood, dwelleth in me, and I in him. As the living Father hath sent me, and I live by the Father: so he that eateth me, even he shall live by me."
Ellen White directly references John 6:47-57 in this passage.