"These disciples were to be heralds of the truth, to prepare the way for the coming of their Master. The message they had to bear was the word of eternal life, and the destiny of men depended upon their reception or rejection of it. To impress the people with its solemnity, Jesus bade His disciples, “Whosoever shall not receive you, nor hear your words, when ye depart out of that house or city, shake off the dust of your feet. Verily I say unto you, It shall be more tolerable for the land of Sodom and Gomorrah in the day of judgment, than for that city.” DA 352.1"
"And whosoever shall not receive you, nor hear your words, when ye depart out of that house or city, shake off the dust of your feet."
The EGW passage directly quotes and elaborates on the instruction given in Matthew 10:14 regarding shaking off the dust from one's feet as a sign of rejection.
Now the Saviour's eye penetrates the future; He beholds the broader fields in which, after His death, the disciples are to be witnesses for Him. His prophetic glance takes in the experience of His servants through all the ages till He shall come the second time. He shows His followers the conflicts they must meet; He reveals the character and plan of the battle. He lays open before them the perils they must encounter, the self-denial that will be required. He desires them to count the cost, that they may not be taken unawares by the enemy. Their warfare is not to be waged against flesh and blood, but “against the principalities, against the powers, against the world rulers of this darkness, against the spiritual hosts of wickedness in the heavenly places.” Ephesians 6:12 , R. V. They are to contend with supernatural forces, but they are assured of supernatural help. All the intelligences of heaven are in this army. And more than angels are in the ranks. The Holy Spirit, the representat…
"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."
EGW directly quotes Ephesians 6:12 and builds upon the concept of spiritual warfare.