"The Seventy who were sent out a little later were also commissioned to “heal the sick” ( Luke 10:9 ) as well as to announce the advent of the promised Redeemer. In their work of teaching and healing, the disciples followed the example of the Master Teacher, who ministered to both soul and body. The gospel which He taught was a message of spiritual life and physical restoration. Deliverance from sin and the healing of disease were linked together. CT 465.2"
"And heal the sick that are therein, and say unto them, The kingdom of God is come nigh unto you."
EGW directly quotes and references Luke 10:9.