"Early in the morning Peter and his companions came to Jesus, saying that already the people of Capernaum were seeking Him. With surprise they heard Christ's words, “I must preach the kingdom of God to other cities also: for therefore am I sent.” Luke 4:43 . MH 30.1"
"And he said unto them, I must preach the kingdom of God to other cities also: for therefore am I sent."
Ellen White directly references Luke 4:43 in this passage.
"And he said unto them, Let us go into the next towns, that I may preach there also: for therefore came I forth."
EGW directly quotes Luke 4:43, which is a parallel account to Mark 1:38, and references it. This is an explicit allusion.