"“The Lord grant that I may drink largely of that water, for I believe that it is none other than that of which Christ spoke, which will ‘spring up unto everlasting life.’ 1T 604.1"
"But whosoever drinketh of the water that I shall give him shall never thirst; but the water that I shall give him shall be in him a well of water springing up into everlasting life."
EGW directly quotes and applies John 4:14, making this a clear and explicit allusion. The confidence is very high.
"In company with Brother and Sister Maynard, and Brethren Smith and Olmstead, we attended the large Western meetings, the principal victories of which have been fully given in the Review . While attending the meetings in Wisconsin, I was quite feeble. I had labored far beyond my strength at Battle Creek and nearly fainted in the cars on the journey. I had for four weeks suffered much with my lungs, and it was with difficulty that I spoke to the people. Sabbath evening a fomentation was applied over my throat and lungs; but the head cap was forgotten, and the difficulty of the lungs was driven to the brain. As I arose in the morning, I felt a singular sensation upon the brain. Voices seemed to vibrate, and everything appeared to be swinging before me. As I walked, I reeled and came near falling to the floor. I took my breakfast, hoping to be relieved by so doing; but the difficulty only increased. I grew very sick and could not sit up. 1T 604.3"
"In weariness and painfulness, in watchings often, in hunger and thirst, in fastings often, in cold and nakedness."
Both passages describe physical suffering and weariness. While 2 Corinthians 11:27 is a more general list of hardships, the EGW passage details her own experience of exhaustion and illness after ministry work. The connection lies in the shared theme of physical strain and hardship endured in service.
"For we would not, brethren, have you ignorant of our trouble which came to us in Asia, that we were pressed out of measure, above strength, insomuch that we despaired even of life:"
Both passages describe physical suffering and hardship experienced by the author/speaker. While the specifics differ, the overall theme of being overwhelmed and pressed beyond one's limits is present in both.
"prayers, I would speak. I stood before the people in faith, and in about five minutes my head and lungs were relieved, and without difficulty I spoke more than one hour to fifteen hundred eager listeners. After I ceased speaking, a sense of the goodness and mercy of God came over me, and I could not forbear rising again and relating my sickness and the blessing of God which had sustained me while speaking. Since that meeting my lungs have been greatly relieved, and I have been improving in health. 1T 604.4"
"And the prayer of faith shall save the sick, and the Lord shall raise him up; and if he have committed sins, they shall be forgiven him."
Both passages connect prayer with healing. The EGW passage describes healing through prayer, and James 5:15 speaks of the prayer of faith saving the sick.
"And when they had prayed, the place was shaken where they were assembled together; and they were all filled with the Holy Ghost, and they spake the word of God with boldness."
Both passages describe a situation where prayer leads to empowerment and boldness in speaking. The EGW passage describes relief and ability to speak after prayer, while Acts 4:31 describes being filled with the Holy Ghost and speaking boldly after prayer.
"Who forgiveth all thine iniquities; who healeth all thy diseases;"
Both passages deal with healing and God's mercy. The EGW passage describes a personal experience of healing, while the Psalm speaks generally of God's healing power.