"With prophetic vision David, the anointed of God, had foreseen that the coming of Christ should be “as the light of the morning, when the sun riseth, even a morning without clouds.” 2 Samuel 23:4 . And Hosea testified, “His going forth is prepared as the morning.” Hosea 6:3 . Quietly and gently the daylight breaks upon the earth, dispelling the shadow of darkness and waking the earth to life. So was the Sun of Righteousness to arise, “with healing in His wings.” Malachi 4:2 . The multitudes dwelling “in the land of the shadow of death” were to see “a great light.” Isaiah 9:2 . PK 688.1"
"And he shall be as the light of the morning, when the sun riseth, even a morning without clouds; as the tender grass springing out of the earth by clear shining after rain."
EGW directly quotes 2 Samuel 23:4 and applies it to Christ.
"Then shall we know, if we follow on to know the Lord: his going forth is prepared as the morning; and he shall come unto us as the rain, as the latter and former rain unto the earth."
EGW directly quotes Hosea 6:3 and applies it to Christ.
"But unto you that fear my name shall the Sun of righteousness arise with healing in his wings; and ye shall go forth, and grow up as calves of the stall."
EGW directly quotes Malachi 4:2 and applies it to Christ.
"The people that walked in darkness have seen a great light: they that dwell in the land of the shadow of death, upon them hath the light shined."
EGW directly quotes Isaiah 9:2 and applies it to Christ.
"In the later centuries of Israel's history prior to the first advent it was generally understood that the coming of the Messiah was referred to in the prophecy, “It is a light thing that Thou shouldest be My servant to raise up the tribes of Jacob, and to restore the preserved of Israel: I will also give Thee for a light to the Gentiles, that Thou mayest be My salvation unto the end of the earth.” “The glory of the Lord shall be revealed,” the prophet had foretold, “and all flesh shall see it together.” Isaiah 49:6 ; 40:5 . It was of this light of men that John the Baptist afterward testified so boldly, when he proclaimed, “I am the voice of one crying in the wilderness, Make straight the way of the Lord, as said the prophet Esaias.” John 1:23 . PK 688.4"
"And the glory of the Lord shall be revealed, and all flesh shall see it together: for the mouth of the Lord hath spoken it."
EGW directly quotes Isaiah 40:5.
"And he said, It is a light thing that thou shouldest be my servant to raise up the tribes of Jacob, and to restore the preserved of Israel: I will also give thee for a light to the Gentiles, that thou mayest be my salvation unto the end of the earth."
EGW directly quotes Isaiah 49:6 and applies it to the Messiah.
"He said, I am the voice of one crying in the wilderness, Make straight the way of the Lord, as said the prophet Esaias."
Ellen White directly references John 1:23 in this passage.