"The work to be carried on by the people of God is declared in the words of Inspiration: “Behold, I send My messenger before Thy face, which shall prepare Thy way before Thee. The voice of one crying in the wilderness, Prepare ye the way of the Lord, make His paths straight.” Mark 1:2, 3 . “Behold My servant, whom I uphold; Mine elect, in whom My soul delighteth; I have put My Spirit upon Him. He shall bring forth judgment to the Gentiles.... He shall not fail nor be discouraged, till He have set judgment in the earth: and the isles shall wait for His law.” Isaiah 42:1-4 . 9T 64.1"
"As it is written in the prophets, Behold, I send my messenger before thy face, which shall prepare thy way before thee. The voice of one crying in the wilderness, Prepare ye the way of the Lord, make his paths straight."
The EGW passage directly quotes Mark 1:2-3.
"Behold my servant, whom I uphold; mine elect, in whom my soul delighteth; I have put my spirit upon him: he shall bring forth judgment to the Gentiles. He shall not cry, nor lift up, nor cause his voice to be heard in the street. A bruised reed shall he not break, and the smoking flax shall he not quench: he shall bring forth judgment unto truth. He shall not fail nor be discouraged, till he have set judgment in the earth: and the isles shall wait for his law."
Ellen White directly references Isaiah 42:1-4 in this passage.
"God invites all men to the fullest investigation of the claims of His law. His word is sacred and infinite. The cause of truth is to go forth as a lamp that burneth. Earnest study of the word of God will reveal the truth. Sin and wrong will not be sustained, but the law of God will be vindicated. “Thus saith God the Lord, He that created the heavens, and stretched them out; He that spread forth the earth, and that which cometh out of it; He that giveth breath unto the people upon it, and spirit to them that walk therein: I the Lord have called thee in righteousness, and will hold thine hand, and will keep thee, and give thee for a covenant of the people, for a light of the Gentiles; to open the blind eyes, to bring out the prisoners from the prison, and them that sit in darkness out of the prison house.” Verse 5-7 . Christians are to seek their light from the word of God and then in faith go forth to give that light to those who sit in darkness. 9T 64.2"
"Thus saith God the Lord, he that created the heavens, and stretched them out; he that spread forth the earth, and that which cometh out of it; he that giveth breath unto the people upon it, and spirit to them that walk therein: I the Lord have called thee in righteousness, and will hold thine hand, and will keep thee, and give thee for a covenant of the people, for a light of the Gentiles;"
The EGW passage directly quotes Isaiah 42:5-7.