"Writing “Spiritual Gifts,” Vol. 1 In the vision at Lovett's Grove, most of the matter which I had seen ten years before concerning the great controversy of the ages between Christ and Satan, was repeated, and I was instructed to write it out. I was shown that while I should have to contend with the powers of darkness, for Satan would make strong efforts to hinder me, yet I must put my trust in God, and angels would not leave me in the conflict. LS 162"
"For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places."
Both passages refer to a spiritual battle against the forces of darkness. The EGW passage explicitly mentions contending with the powers of darkness and Satan's efforts, which directly parallels the struggle against 'principalities, against powers, against the rulers of the darkness of this world' described in Ephesians 6:12.
"For he shall give his angels charge over thee, to keep thee in all thy ways."
The EGW passage explicitly mentions angels protecting her during her work, which directly echoes the promise in Psalm 91:11. The verse provides a basis for her confidence in divine protection during a challenging task.